학력사항

• 1994. 3 ~ 1999. 2 Ph. D. Dept. of Physics, Seoul National University
• 1992. 3 ~ 1994. 2 M.S. Dept. of Physics, Seoul National University
• 1988. 3 ~ 1992. 2 B.S. Dept. of Physics, Seoul National University

경력사항

• 2015. 2 ~ current Head of physics dept.
• 2014. 2 ~ current 기술이전센터소장.

• 2004. 9 ~ current Professor

  Dept. of Physics, Hankuk University of Foreign Studies

• 2002. 2 ~ 2004. 8. JST ERATO Fellow (Researcher)

  Tokura Spin Superstructure Project (SSS), ERATO, JST

• 2001.10 ~ 2002. 2 Postdoctral Research Scientist

  Pohang Superconductivity Center, Dept. of Physics, POSTECH

• 1999. 3 ~ 2001. 9 Postdoctral Research Scientist

  Basic Science Research Institute, POSTECH

연구분야

• a) Research Experience

  - Pulsed laser deposition, e-beam evaporation, thermal evaporation

  - Sample preparation (solid state reaction),

  - Sample treatment (standard photolithography),

  - Characterization and measurement (PPMS, MPMS)

  Electrical resistivity, Magnetization, Upper critical magnetic field,

  High resolution X-ray diffraction, SEM, AFM, DE-hysteresis curve,

  - Design and total setup (plus machining, welding etc)

  High pressure high temperature furnace (6 GPa,1450C)

   

  b) Oxide thin films:

  SrCoOx, BiMnO3, YTiO3, SrRuO3, CaHfO3, (Ba,SR)TiO3, CMR, Mutiferroics, dielectrics

   

  c) High Tc Superconductors:

  MgB2, doping study, bulk and single crystal and thin film

  (Ln,Sr)CuO2, (Ln = Lanthanide La, Sm, Nd, Gd, etc). Infinite layer superconductor

   

  d) R-RAM SrCoOx and NiO based Resistive switching material.

주요논문 및 저서

• 
  

  [134] S HARISANKAR, Venkata Raveendra Nallagatla, Duc Duy Le, Bingqian Song, Heung-Sik Park, Jung Woo Cho, Seung Chul Chae, Eunsu Lee, Chan-Ho Yang, Chang Uk Jung " Electronic Transport and Resistive Switching Properties in Topotactic SrFe1–x Cox O2. 5 Devices."  ACS Applied Electronic Materials, 6(5), 3264-3273. (2024) 
  

  [133] Umasankar Dash, Soumen Pradhan, MS Ramachandra Rao, F Veillon, W Prellier, Chang Uk Jung. " The dynamics of glassy behavior in SrRu1-xFexO3 heterostructure. " Current Applied Physics, 58, 51-56. (2024)
  

  [132] Harisankar Sasindrababu, Venkata Raveendra Nallagatla, Duc Duy Le, Bingqian Song, Heung-Sik Park, Jung Woo Cho, Seung Chul Chae, Eunsu Lee, Chan-Ho Yang, Chang Uk Jung. " Graphene Quantum Dots as an Oxygen Reservoir for Topotactic Phase Transition‐Based Memristive Devices."  Advanced Electronic Materials, 9(11), 2300401. (2023)

  [131] Jung, C. U.  "Magnetic Properties of SrRuO₃ Epitaxial Thin Film Grown on KTaO₃ (001) Substrate." Journal of Magnetics, 28(3), 230-233. (2023)

  [130] HG Kim, VR Nallagatla, CU Jung, GS Park, DH Kwon, M Kim.  "Understanding the Behavior of Oxygen Vacancies in an SrFeOx/Nb: SrTiO3 Memristor."  Electronic Materials Letters, 18(2), 168-175. (2022) 

  [129] VR Nallagatla, S Harisankar, CU Jung. " Ferromagnetic ReRAM in Sr (Fe, Co) O x." 한국자기학회 학술연구발표회 논문개요집, 31(2), 80-81. (2021) 

  [128] Jung, C. U. " Error in Handling Significant Figures in Polar Coordinates in University Physics Textbooks." 새물리, 71(9), 771-774. (2021)

  [127] CU Jung, SK Acharya, VR Nallagatla, BW Lee, C Liu. "Variable resistor, non-volatile memory element using the same, and method of fabricating the same." U.S. Patent No. 10,886,466. (2021)

  [126] Jung, C. U., & Nallagatla, V. R. "Significant error in significant figures?" . Journal of the Korean Physical Society, 78(2), 89-92. (2021)

  [125] Umasankar Dash, D Kumar, Kyoungjun Lee, TS Suraj, MS Ramachandra Rao, Seung Chul Chae, A Fouchet, Suyoun Lee, Wilfrid Prellier, Chang Uk Jung. " Charge transfer and magnetotransport properties of Sr1-xLaxRu1-xCoxO3 epitaxial thin films." Journal of Alloys and Compounds, 847, 156142. (2020) 

  [124] Nallagatla, V. R., & Jung, C. U. " Resistive switching behavior in epitaxial brownmillerite SrFeO2. 5/Nb: SrTiO3 heterojunction."  Applied Physics Letters, 117(14). (2020)

  [123] Kim, H. G., Nallagatla, V. R., Kwon, D. H., Jung, C. U., & Kim, M. " In situ observations of topotactic phase transitions in a ferrite memristor." Journal of Applied Physics, 128(7). (2020)

  [122] Nallagatla, V. R., Kim, J., Lee, K., Chae, S. C., Hwang, C. S., & Jung, C. U. " Complementary resistive switching and synaptic-like memory behavior in an epitaxial SrFeO2. 5 thin film through oriented oxygen-vacancy channels."ACS Applied Materials & Interfaces, 12(37), 41740-41748. (2020) 

  [121] Kumar, D., David, A., Fouchet, A., Pautrat, A., Boullay, P., Jung, C. U., & Prellier, W. " Strong magnetic anisotropy of epitaxial PrVO3 thin films on SrTiO3 substrates with different orientations."  ACS applied materials & interfaces, 12(31), 35606-35613. (2020)

  [120] Kurnia, F., Liu, C., Raveendra, N., Jung, C. U., Vasudevan, R. K., & Valanoor, N. " Self‐Assembled NiO Nanocrystal Arrays as Memristive Elements."  Advanced Electronic Materials, 6(5), 1901153. (2020)

  [119] Janghyun Jo, Venkata Raveendra Nallagatlla, Susant Kumar Acharya, Youngho Kang, Yoonkoo Kim, Sangmoon Yoon, Sangmin Lee, Hionsuck Baik, Seungwu Han, Miyoung Kim, Chang Uk Jung. " Effects of the heterointerface on the growth characteristics of a brownmillerite SrFeO2. 5 thin film grown on SrRuO3 and SrTiO3 perovskites." Scientific reports, 10(1), 3807. (2020)

  [118] D Kumar, A Fouchet, A David, A Cheikh, TS Suraj, O Copie, CU Jung, A Pautrat, MS Ramachandra Rao, Wilfrid Prellier. "Enhancement of magnetic properties in compressively strained PrVO 3 thin films." Physical Review Materials, 3(12), 124413. (2019)

  [117] Nallagatla, V. R., Dash, U., & Jung, C. U. "SrFeOx: discovery of ReRAM and spectroscopic study on its unique switching mechanism." 한국자기학회 학술연구발표회 논문개요집, 29(2), 84-85. (2019)

  [116] Venkata R Nallagatla, Thomas Heisig, Christoph Baeumer, Vitaliy Feyer, Matteo Jugovac, Giovanni Zamborlini, Claus M Schneider, Rainer Waser, Miyoung Kim, Chang Uk Jung, Regina Dittmann. "Topotactic phase transition driving memristive behavior."  Advanced materials, 31(40), 1903391. (2019)

  [115] Jung, C. U., & Raveendra, N. V. " Observation of Resistance Switching in BiMnO₃ Thin Film Grown on Nb-doped SrTiO₃ (110) Substrate."  Journal of Magnetics, 24(2), 199-201. (2019)

  [114] Deepak Kumar, Adrian David, Arnaud Fouchet, Alain Pautrat, Julien Varignon, Chang Uk Jung, Ulrike Lüders, Bernadette Domengès, Olivier Copie, Philippe Ghosez, Wilfrid Prellier. "Magnetism tailored by mechanical strain engineering in PrVO 3 thin films." Physical Review B, 99(22), 224405. (2019) 

  [113] Nallagatla, V. R., Jo, J., Acharya, S. K., Kim, M., & Jung, C. U. " Confining vertical conducting filament for reliable resistive switching by using a Au-probe tip as the top electrode for epitaxial brownmillerite oxide memristive device." Scientific Reports, 9(1), 1188. (2019)

  [112] Jung, C. U. "Growth of LaCoOx doped SrRuO3 thin film for higher magnetoresistance. "한국자기학회 학술연구발표회 논문개요집, 28(2), 115-115. (2018) 

  [111] Dash, U., & Jung, C. U. " Magneto-transport Properties in SrRu 0.7 Fe 0.3 O 3-δ Epitaxial Thin Film."  Journal of Magnetics, 23(3), 345-349. (2018)

  [110] Jung, C. U. "Variable focus spectacles and method of driving the same." U.S. Patent Application No. 15/835,006. (2018)

  [109] Dash, U., Acharya, S. K., Lee, B. W., & Jung, C. U. "Magnetoresistance versus oxygen deficiency in epi-stabilized SrRu 1− x Fe x O 3− δ thin films." Nanoscale Research Letters, 12, 1-7. (2017)

  [108] Umasankar Dash, Susant Kumar Acharya, Seong Won Cho, Suyoun Lee, Kyoungjun Lee, Seung Chul Chae, Myung Rae Cho, Chang Uk Jung." Large magnetoresistance in LaFeO3-substituted SrRuO3 epitaxial thin films." Journal of Alloys and Compounds, 724, 549-554. (2017)

  [107]Jung, Chang-Uk, et al. "Resistive switching memory device using brownmillerite-structured material." U.S. Patent Application No. 15/322,711. (2017) 

  [106] Dash, U., & Jung, C. U. "Structural, magnetic and transport behavior of SrRu 0.7 Fe 0.3 O 3 epitaxial thin film." In Proceedings of the Korean Magnestics Society Conference (pp. 48-49). The Korean Magnetics Society. (2017)

  [105] Susant Kumar Acharya, Janghyun Jo, Nallagatlla Venkata Raveendra, Umasankar Dash, Miyoung Kim, Hionsuck Baik, Sangik Lee, Bae Ho Park, Jae Sung Lee, Seung Chul Chae, Cheol Seong Hwang, Chang Uk Jung. "Brownmillerite thin films as fast ion conductors for ultimate-performance resistance switching memory."  Nanoscale, 9(29), 10502-10510. (2017)

  [104] Dash, U., Raveendra, N. V., & Jung, C. U. " A rigorous investigation of BiMnO3 ferroelectricity through a development of a novel way to stabilize twin free and monoclinic thin film. " Journal of Alloys and Compounds, 684, 310-314. (2016)

  [103] Susant K Acharya, Raveendra Venkata Nallagatla, Octolia Togibasa, Bo W Lee, Chunli Liu, Chang U Jung, Bae Ho Park, Ji-Yong Park, Yunae Cho, Dong-Wook Kim, Janghyun Jo, Deok-Hwang Kwon, Miyoung Kim, Cheol Seong Hwang, Seung C Chae. "Epitaxial brownmillerite oxide thin films for reliable switching memory." ACS Applied Materials & Interfaces, 8(12), 7902-7911. (2016)

  [102] The-Long Phan, NT Dang, TA Ho, TV Manh, TD Thanh, CU Jung, BW Lee, Anh-Tuan Le, Anh D Phan, SC Yu." First-to-second-order magnetic-phase transformation in La0. 7Ca0. 3-xBaxMnO3 exhibiting large magnetocaloric effect." Journal of Alloys and Compounds, 657, 818-834. (2016)

  [101] Kirstie Raquel Natalia Toreh, Deok Hyeon Kim, Umasankar Dash, The-Long Phan, Bo Wha Lee, Hyun-Woo Jin, Suyoun Lee, Bae Ho Park, Ji-Yong Park, Myung Rae Cho, Yun Daniel Park, Susant Kumar Acharya, Woosuk Yoo, Myung-Hwa Jung, Chang Uk Jung. The “self spin valve” in oxygen stoichiometric SrRu1− xFexO3− δ epitaxial thin films. Journal of Alloys and Compounds, 657, 224-230. (2016)

  [100] JUNG, C. U., & Dash, U. Magnetic properties in Sr 1-x La x Ru 1-x Fe x O 3 thin film. In Proceedings of the Korean Magnestics Society Conference (pp. 138-139). The Korean Magnetics Society. (2016)

  [99] JUNG, C. U., & Dash, U. Magneto-resistance in doped SrRuO 3 thin film. In Proceedings of the Korean Magnestics Society Conference (pp. 139-140). The Korean Magnetics Society. (2016)

  [98] Dash, U., Raveendra, N. V., & Jung, C. U. Detwinning Monoclinic Phase BiMnO 3 Thin Film. Journal of Magnetics, 21(2), 168-172. (2016)

  [97] Bo Wha Lee, Pil Sun Yoo, Vu Bin Nahm, Kirstie Raquel Natalia Toreh, and Chang Uk Jung, “Magnetic and electric properties of stoichiometric BiMnO3 thin films”, Nanoscale Research Letters 2015, 10:47 . (2015)

  [96] Role of oxygen vacancies in resistive switching in Pt/Nb-doped SrTiO3 Jinho Park, Deok-Hwang Kwon, Hongwoo Park, C. U. Jung, and M. Kim, Applied Physics Letters 105, 183103 (2014), published online 3 November 2014

  [95] Octolia T. Tambunan, Kadek J. Parwanta, Susant K. Acharya, Bo Wha Lee, Chang Uk Jung, Yeon Soo Kim, Bae Ho Park, Huiseong Jeong, Ji-Yong Park, Myung Rae Cho, Yun Daniel Park, Woo Seok Choi, Dong-Wook Kim, Hyunwoo Jin, Suyoun Lee, Seul Ji Song, Sung-Jin Kang, Miyoung Kim, and Cheol Seong Hwang “Resistance switching in epitaxial SrCoOx thin films”, Applied Physics Letters 105, 063507 (2014)

  [94] Octolia Togibasa Tambunan, Min Young Lee, Deok Hyeon Kim, Kadek Juliana Parwanta and Chang Uk Jung “Phase Transformation of the Brownmillerite SrCoO2.5 Thin Film through Alkaline Water Electrolysis”, Journal of the Korean Physical Society, Vol. 64, No. 12, pp. 1845_1848, (2014) June

  [93] Kirstie Raquel Natalia Toreh, Min Young Lee, Octolia Togibasa Tambunan, Deok Hyeon Kim, Bo Wha Lee, Chang Uk Jung, “Magnetic properties of SrRu0.9Fe0.1O3 thin films grown on different surfaces of SrTiO3 substrates” , Current Applied Physics 14, pp. 1140-1143 (2014)

  [92] Susant Kumar Acharya, Byung-Guk Ahn, Chang Uk Jungb, Jung-Hyuk Koh, In-Hwan Choi, Sang-Kwon Lee, Journal of Alloys and Compounds 603 (2014) 248?254.Top 10%, Journal of Alloys and Compounds (2014). 26 March 2014 “Effect of Rb doping on ferroelectric and piezoelectric properties of Bi0.5Na0.5TiO3-BaTiO3 thin films Journal of Alloys and Compounds”

  [91] Bowha Lee, O-Ung Kwon, Ran Hee Shin, William Jo, and Chang Uk Jung, “Ferromagnetism and Ru-Ru distance in SrRuO3 Thin Film Grown on SrTiO3 (111) Substrate”, Nanoscale Research Letters 2014 9:8. (2014), Jan

  [90] D. Amaranatha Reddy; D.H. Kim; S. J. Rhee; C. U. Jung; B. W. Lee; Chunli Liu, “Hydrothermal synthesis of wurtzite Zn1_xNixS mesoporous nanospheres: With blue?green emissions and ferromagnetic Curie point above room temperature”, J. Alloys and Compounds. (if=2.39). 588 596-604 (2014) March

  [89] L. Hasanah, F.A. Noor, C.U. Jung and K. Khairurrijal, “Verification of theoretical model for collector current in SiGe-based heterojunction bipolar transistors”, Electronics Letters Vol. 49 No. 21 pp. 1347?1348, 10th Oct (2013),

  [88] cite Widi Yansen, Kadek Juliana Parwanta, Hadiyawarman, Deokhyeon Kim, Younmi Gwan, Jaeyeong Kim, Chunli Liu, Chang Uk Jung and Bo Wha Lee*, “Effects of Bismuth Donor Doping on the Phase Structure, Magnetic and Ferroelectric Properties of Fe-doped BaTiO3”, Journal of the Korean Physical Society, 63, 306-309 (2013).

  [87] cite H. Jeen, W. S. Choi, J. W. Freeland, H. Ohta, C. U. Jung, and H. N. Lee*, “Epitaxial oxygen sponges: Topotatic phase transformation in strontium cobaltite films”, Advanced Material,) 2013, 25, 3651?3656 12 JUL 2013

  [86] cite E.Venkata Ramana, S. M. Yang, Ranju Jung, M. H. Jung, B. W. Lee and C.U.Jung*, “Ferroelectric and magnetic properties of Fe-doped BaTiO3 thin films grown by the pulsed laser deposition” J of Applied Physics, 113, 187219. (2013published online 8 May 2013)

  [85] cite F. Kurnia, Chunli Liu, C. U. Jung, and B. W. Lee , “The evolution of the conducting filaments in forming-free resistive switching Pt/TaOx/Ptstructures” Appl. Phys. Lett., 102, 152902 (2013), published online 16 April 2013

  [84] cite O-Ung Kwon, Namic Kwon, B. W. Lee, and C. U. Jung, “Structural and electrical Properties of SrRuO3 thin film grown on SrTiO3 (110) substrate” J. of Magnetics, 18 (1), 39-42 (2013). 31 Mar

  [83] cite Fran Kurnia, Octolia Togibasa Tambunan, Bowha Lee, Jinsung Choi, Jaewon Cho, Bae Ho Park, Seung Bo Shim, Jinhee Kim, Ji-Yong Park, and Chang Uk Jung, “The Effect of Plasma Treatment on the Physical Properties of SrRuO3 Films on SrTiO3 Substrate”, J. of the Phys. Soc. of Japan, 82(1), 013706-1, 3 (2013) Jan.

  [82] cite B. W. Lee, and C. U. Jung, “Coherent growth behavior of an orthorhombic (Ca,Sr)SnO3 thin film on a cubic SrTiO3 (110) substrate”, Journal of the Korean Physical Society, 61(5), 795-798 (2012). Sep.

  [81] cite Octolia Togibasa Tambunan, Hadiyawarman Tukiman, Kadek Juliana Parwanta, Da Woon Jeong, Chang Uk Jung, Seuk Joo Rhee, Chunli Liu, “Structural and optical properties of SrCu2O2 films deposited on sapphire substrates by pulsed laser deposition”, Superlattices and Microstructures, 52, 774-781 (2012). Jun.

  [80] cite Seunghun Lee, Bum-Su Kim, Seung-Wan Seo, Yong Chan Cho, Sung Kyu Kim, Jong Pil Kim, Il-Kyung Jeong, Chae Ryong Cho, Chang Uk Jung, Hideomi Koinuma, and Se-Young Jeong, “A study of the correlation between hydrogen content and magnetism in ZnCoO”, J. of Applied Physics, 111, 07C304 (2012). Feb.

  [79] cite 2 Octolia Togibasa Tambunan, Jaeyoung Kim, Il-Ho Kim, Chang Uk Jung, Bo Wha Lee, and Chunli Liu, “Thermoelectric Properties of polycrystalline tetragonal SrCu2O2”, J. Ceram. Process. Res. 12(6), 673-676 (2011) Dec

  [78] cite 0 Jaewan Choi, Hyunjin Ji, Octolia Togibasa Tambunan, In-Sung Hwang, Hyung-Sik Woo, Jong-Heun Lee, Bo Wha Lee, Chunli Liu, Seuk Joo Rhee, Chang Uk Jung, and Gyu-Tae Kim, “Brush-Shaped ZnO Heteronanorods Synthesized Using Thermal-Assisted Pulsed Laser Deposition”, ACS Applied Materials & Interfaces, 3, 4682-4688 (2011). Nov.

  [77] cite 6 S. H. Chang, Y. J. Chang, S. Y. Jang, D. W. Jeong, C. U. Jung, Y.?J. Kim. Chung, J.-S. Chung, and T. W. Noh, “Thickness-dependent structural phase transition of strained SrRuO3 ultrathin films; the role of octahedral tilt”, Phys. Rev. B, 84, 104101-1-5 (2011) Sep.

  [76] cite 0 W. Yansen, Agustina Ismail, R. Rajagukguk, C. U. Jung, and B. W. Lee, “Effect of Cu substitution on Magnetic Properties of Ca3Co2O6”, IEEE Transactions on Magnetics, 47, 2709-2711 (2011) Oct.

  [75] cite 1 B. W. Lee and C. U. Jung, “Growth and magnetic characterization of epitaxially stabilized Fe-doped SrRuO3 thin films”, Journal of the Korean Physical Society 59(2), 322-325 (2011) Aug.

  [74] cite 3 F. Kurnia, Hadiyawarman, C. U. Jung, Ranju Jung, Chunli Liu, “Composition dependence of unipolar resistance switching in TaOx thin films” Physica Status Solidi (RRL) - Rapid Research Letters, 5 (7), 253-255 (2011) Jun. Article first published online : 14 JUN 2011, DOI: 10.1002/pssr.201105253 9

  [73] cite 0 Chang Uk JUNG, “Tuning of the Ferromagnetic Properties in SrRuO3 Thin Films”, Journal of the Korean Physical Society , 58 (1), 83-86 (2011). Jan.

  [72] cite 3 F. Kurnia, Hadyawarman, C. U. Jung, Chunli Liu*, S. B. Lee, S. M. Yang H.W. Park, S.J. Song, C. S. Hwang, “Effect of NiO Growth Conditions on the BRS of Pt NiO SRO structure”, Journal of the Korean Physical Society 57, 1856-1861 (2010). Dec.

  [70] cite 4 E.Venkata Ramana, Hong Woo Park, and C.U.Jung, “Electrical and magnetic properties of Sr(Ru,Cr)O3 thin films”, IEEE Transactions on Magnetics, 46(6), 2228 (2010). Jun. 3

  [69] cite 8 B. W. Lee and C. U. Jung, “Modification of magnetic properties through the control of growth direction and epitaxial strain in the SRO thin film”, App. Phys. Lett. 96, 102507 (2010) Mar.

  [68] cite 0 Jay Hyun Jo, Shin Buhm Lee, Jonathan Hanjin Lee, Seo Hyoung Chang, Seung Chul Chae, and Chang Uk Jung, “Effects of electrode polarity on filament ruptures during unipolar resistance switchings”, Current Applied Physics 10, 817-820 (2010) Oct.

  [67] cite 0 E. Venkata Ramana, O-Ung Kwon, Jin I Kim, and C. U. Jung, “Structural and Magnetic Properties of LaFeO3-BaTiO3 Solid Solutions”, SCIE J. of Magnetics, 14 (3), 117-119 (2009). Sep.

  [66] cite 37 Hyun-Sook Lee, Marek Bartkowiak, Jae-Hyun Park, Jae-Yeap Lee, Ju-Young Kim, Nak-Heon Sung, B. K. Cho, Chang-Uk Jung, Jun Sung Kim, and Hu-Jong Lee, “Effects of two-gap and paramagnetic pair-breaking effects on upper critical field of SmFeAsO0.85 and SmFeAsO0.8F0.2 single crystals”, Phy. Rev. B 80, 144512 (2009) Oct.

  [65] cite 17 H-S Lee, J-HPark, J-Y Lee, J-YKim, N-H Sung, T-Y Koo, B K Cho, C-U Jung, S Saini, S-JKim and H-J Lee, “High-pressure growth of fluorine-free SmFeAsO1?x superconducting single crystals”, Supercond. Sci. Technol. 22, 075023 (2009).

  [64] cite 5 J. Kim, S. B. Kim, C. U. Jung, and B. W. Lee, “Magnetic Anisotropy in LuFe2O4 Single Crystal”, IEEE Transactions On Magnetic, 45(6), 2608 , (2009). Jun. 4

  [63] cite 7 S. C. Chae, Y. J. Chang, D.-W. Kim, B. W. Lee, I. Choi, and C. U. Jung, “Magnetic properties of insulating RTiO3 thin films” J. Electroceramics, 22, (1) 216 (2009) Feb.

  [62] cite 0 J. Kim, J. S. Ahn, C. U. Jung, C. S. Kim and B. W. Lee, “Phase transitions in Er1-xLuxFe2O4”, J. of Applied Physics 105, 07D906 (2009). Apr.

  [61] cite 10 C. Liu, S. C. Chae, J. S. Lee, S. H. Chang, S. B. Lee, D.-W. Kim, C. U. Jung, S. Seo, S.-E. Ahn, B. Kahng, and T. W. Noh, “Abnormal resistance switching behaviours of NiO thin films: possible occurrence of both formation and rupturing of conducting channels “, J. Phys. D: Appl. Phys. 42, 015506 (2009) Aug.

  [60] cite 10 B. W. Lee, C. U. Jung, M. Kawasaki, and Y. Tokura, “Tuning of magnetism in SrRuO3 thin films on SrTiO3 (001) substrate by control of the twin and strain amount in the buffer layer “, J. Appl. Phys. 104, 103909 (2008). Nov. 4

  [59] cite 1 G. V. M. Williams, S. Richter, J. Haase, C. U. Jung, Hye-Gyong Lee, and Sung-Ik Lee, “Magnetization and Cu nuclear magnetic resonance study of Sr0.9La0.1Cu1-xNixO2”, Phys. Rev. B 78(10), 104522 (2008). Sep.

  [58] cite 0 Jin I Kim and C. U. Jung, “Magnetic Properties of SrRuO3 thin films having different crystal symmetries”, SCIE J. of Magnetics 13 (2), 57-60 (2008). Jun.

  [57] cite 0 Young J. Chang, Jin I Kim, and C. U. Jung, “Electrical properties of SrRuO3 thin films with varying c-axis lattice constant”, SCIE J. of Magnetics 13 (2), 61-64 (2008). Jun.

  [56] cite 0 N. G. Kim, Naresh Kumar, Y A Park, N Hur, C. U. Jung and J. H. Jung, “Application of magnetic fields for a low temperature growth of high-quality SrRuO3 thin films”, Journal of Physics D: Appl. Phys. 41, 125005 (2008) Jun.

  [55] cite 48 S. H. Chang, S. C. Chae, S. B. Lee, C. Liu, T. W. Noh, J. S. Lee, B. Kahng, J. H. Jang, M. Y. Kim, D.-W. Kim, C. U. Jung, “Effects of heat dissipation on unipolar resistance switching in Pt/NiO/Pt capacitors”, Appl. Phys. Lett. 92, 183507 (2008). May.

  [54] cite 0 B. W. Lee, I. Choi, C. U. Jung, and S. I. Lee, “Doping in MgB2 superconductors using a high-pressure furnace”, Journal of Magnetism and Magnetic Materials, 320, 484-486 (2008). July.

  [53] cite 204 Seung Chul Chae, Jae Sung Lee, Sejin Kim, Sinbum Lee, Seo Hyoung Chang, Chunli Liu, Byungnam Kahng, Hyunjung Shin, Dong-Wook Kim, Chang Uk Jung, Sunae Seo, Myoung-Jae Lee, and Tae Won Noh, “Random Circuit Breaker Network Model for Unipolar Resistance Switching”, Advanced Materials 20 (6), 1154-1159 (2008). Mar. 2008

  [52] cite 12 S. B. Lee, S. C. Chae, S. H. Chang, C. Liu, C. U. Jung, S. Seo, D.-W. Kim, “Resistance Switching in Electroformed Pt/FeOx/Pt Structures”, Journal of the Korean Physical Society, 51, S96-S99 (2007). Oct.

  [51] cite 3 C. U. Jung and S. -I. Lee, “Effect of unreacted Mg on the pinning properties of MgB2”, Journal of Magnetism and Magnetic Materials 317, 501-503 March (2007).

  [50] cite 12 S. C. Chae, Y. J. Chang, S. S. A. Seo and T. W. Noh, D.-W. Kim , and C. U. Jung, Epitaxial growth and the magnetic properties of orthorhombic YTiO3 thin films, Appl. Phys. Lett. 89, 182512 (2006). Nov.

  [49] cite 0 Kijoon H. P. Kim, C. U. Jung, Heon-Jung Kim, Min-Seok Park, Mun-Seog Kim, Kyung Hee Kim, Sung-Ik Lee, K. H. Kim, J. B. Betts, M. Jaime, A. H. Lacerda, G. S. Boebinger, “Origin of Diversified Transport Properties of MgB2 ”, International Journal of Modern Physics B 17, 3672 (2003).

  [48] cite 23 Y. S. Kim, J. Y. Jo, D. J. Kim, Y. J. Chang, J. H. Lee, T. W. Noh, T. K. Song, J.-G. Yoon, J.-S. Chung, S. I. Baik, Y.-W. Kim, and C. U. Jung, “Ferroelectric properties of SrRuO3/BaTiO3/SrRuO3 ultrathin film capacitors free from passive layers”, Appl. Phys. Lett. 88, 072909 (2006) Feb.

  [47] cite 0 Heon-Jung Kim, Min-Seok Park, C.U. Jung, Sung-Ik Lee and Mun-Seog Kim, “Anistropy of the Electron-Doped Infinite layer Superconductors Sr0.9La0.1CuO2”, Int. J Mod Phy B 19 (1-3), 209-212 (2005) Jan.

  [46] cite 12 R. Mathieu, C. U. Jung, H. Yamada, A. Asamitsu, M. Kawasaki, and Y. Tokura, “Determination of the intrinsic anomalous Hall effect of SrRuO3”, Phys. Rev. B 72, 064436 (2005) Aug.

  [45] cite 25 Z.Y. Liu, H. H. Wen, L. Shan, H. P. Yang, X.F. Lu, H. Gao, M. S. Park, C. U. Jung, S. I. Lee , “Bulk evidence for s-wave pairing symmetry in electron-doped infinite- layer cuprate Sr0.9La0.1CuO2 ”, Europhys. Lett. 69, 263-269 (2005) Jan.

  [44] cite 7 G.V.M. Williams, S. Kramer, C.U. Jung, Min-Seok Park, and Sung-Ik Lee, “Nuclear magnetic resonance study of the electron-doped high-temperature superconducting cuprates”, Solid State Nuclear Magnetic Resonance 26, 236-245 (2004). Nov.

  [43] cite 6 Min-Seok Park, Kyung-Hee Kim, C. U. Jung, Mun-Seog Kim and Sung-Ik Lee, “Superconductivity and Magnetization of the Electron-Doped Infinite-Layer Superconductor Sr0.9La0.1CuO2”, Journal of the Korean Physical Society 45, 656-659 (2004). Sep.

  [42] cite 0 L. Lyard, T. Klein, J. Marcus, C. Marcenat, B. Kang, H.-J. Kim, E.-M. Choi, C.U. Jung, S.-I. Lee, “Linear and non-linear ac response of the vortex matter in MgB2 single crystals”, Physica C 408-410, 93-94 (2004). Aug.

  [41] cite 5 Kijoon H.P. Kim, C.U. Jung, B.W. Kang, Kyung Hee Kim, Hyun-Sook Lee, Sung-Ik Lee, N. Tamura, W.A. Caldwell, J.R. Patel, “Microstructure and superconductivity of MgB2 single crystals”, Current Applied Physics 4, 272-275 (2004). Apr,

  [40] cite 44 C. U. Jung, Hiroyuki Yamada, M. Kawasaki, and Y. Tokura, “Magnetic anisotropy control of SrRuO3 films by tunable epitaxial strain”, Appl. Phys. Lett., 84, 2590-2592 (2004). 5 Apr. .

  [39] cite 33 A. Rydh, U. Welp, J. M. Hiller, A. E. Koshelev, W. K. Kwok, G. W. Crabtree, K. H. P. Kim, K. H. Kim, C. U. Jung, H.-S. Lee, B. Kang, and S.-I. Lee., “Surface Contribution to the superconducting properties of MgB2 single crystals”, Phy Rev. B 68, 172502-1-4 (2003). Nov.

  [38] cite 1 H. D. Yang, H. L. Liu, J.-Y. Lin, M. X. Kuo, P. L. Ho, J. M. Chen, C. U. Jung, Min-Seok Park, and Sung-Ik Lee, “X-ray absorption and optical spectroscopy studies of (Mg1?xAlx)B2”, Phys. Rev. B 68, 092505-1-4 (2003). Sep..

  [37] cite 4 C. U. Jung, J. Y. Kim, Sung-Ik Lee, and Mun-Seog Kim, “Effect of the magnetic moments of Gd on the superconductivity in the infinite-layer superconductor Sr0.9Gd0.1CuO2”, Physica C, 391, 319-325 (2003). Sep.

  [36] cite 0 Heon-Jung Kim, C. U. Jung, J. Y. Kim, Mun-Seog Kim, and Sung-Ik Lee, “Magnetic relaxation measurement of the infinite-layer superconductor Sr0.9La0.1CuO2”, Physica C 385, 555-562 (2003). Apr.

  [35] cite 97 U. Welp, A. Rydh, G. Karapetrov, W. K. Kwok, G. W. Crabtree, Ch. Marcenat, L. Paulius, T. Klein, J. Marcus, K. H. P. Kim, C. U. Jung, H.-S. Lee, B. Kang, and S.-I. Lee, “Superconducting transition and phase diagram of single-crystal MgB2”, Phys. Rev. B 67, 012505-1-4 (2003). Jan.

  [34] cite 31 Mun-Seog Kim, Thomas R. Lemberger, C. U. Jung, Jae-Hyuk Choi, J. Y. Kim, Heon-Jung Kim, and Sung-Ik Lee, “Anisotropy and reversible magnetization of infinite-layer superconductor Sr0.9La0.1CuO2”, Phys. Rev. B 66, 214509-1-5 (2002). Dec

  [33] cite 25 C. U. Jung, J. Y. Kim, P. Chowdhury, Kijoon H. P. Kim, Sung-Ik Lee, D. S. Koh, N. Tamura, W. A. Caldwell, and J. R. Patel, “Microstructure and pinning properties of hexagonal-disc shaped single crystalline MgB2”, Phys. Rev. B 66, 184519-1-5 (2002). Nov.

  [32] cite 156 L. Lyard, P. Samuely, P. Szabo, T. Klein, C. Marcenat, L. Paulius, K. H. P. Kim, C. U. Jung, H.-S. Lee, B. Kang, S. Choi, S.-I. Lee, J. Marcus, S. Blanchard, A. G. M. Jansen, U. Welp, G. Karapetrov, W. K. Kwok, “Anisotropy of the upper critical field and critical current in single crystal MgB2”, Phys. Rev. B 66, 180502-1-4(2002). Nov.

  [31] cite 17 Tuson Park, M. B. Salamon, C. U. Jung, Min-Seok Park, Kyunghee Kim, and Sung-Ik Lee, “Fluctuation study of the specific heat of Mg11B2”, Phys. Rev. B 66, 134515-1-5 (2002). Oct.

  [30] cite 25 C. U. Jung, Heon-Jung Kim, Min-Seok Park, Mun-Seog Kim, J. Y. Kim, Zhonglian Du, Sung-Ik Lee, K. H. Kim, J. B. Betts, M. Jaime, A. H. Lacerda, and G. S. Boebinger, “Effects of unreacted Mg impurities on the transport properties of MgB2”, Physica C 377, 21-25 (2002). Aug.

  [29] cite 31 K. H. Kim, J. B. Betts, M. Jaime, A. H. Lacerda, G. S. Boebinger, C. U. Jung, Heon-Jung Kim, Min-Seok Park, and Sung-Ik Lee, “Mg as a main source for the diverse magnetotransport properties of MgB2”, Phys. Rev. B. 66, 020506-1-4 (2002). Jul.

  [28] cite 17 A. Dulcic, D. Paar, M. Pozek, G. V. M. Williams, S. Kramer, C. U. Jung, Min-Seok Park, and Sung-Ik. Lee, “Magnetization and Microwave Study of Superconducting MgB2”, Phys. Rev. B 66, 14505-1-7 (2002). Jul.

  [27] cite 17 Mun-Seog Kim, C. U. Jung, J. Y. Kim, Jae-Hyuk Choi, and Sung-Ik Lee, “Three-Dimensional Superconductivity in the Infinite-Layer Compound Sr0.9La0.1CuO2 in Entire Region below Tc”, Solid State Communications, 123, 17-20 (2002). Jul.

  [26] cite 34 G. V. M. Williams, R. Dupree, A. Howes, S. Kramer, H. J. Trodahl, C. U. Jung, Min-Seok Park, and Sung-Ik Lee, “Gap anisotropy, spin fluctuations, and normal-state properties of the electron-doped superconductor Sr0.9La0.1CuO2”, Phys. Rev. B 65, 224520-1-7 (2002). Jun.

  [25] cite 515 S. W. Jung, S.-J. An, Gyu-Chul Yi, C. U. Jung, and Sung-Ik Lee, and Sunglae Cho, “Ferromagnetic properties of Zn1-xMnxO epitaxial thin films ”, Appl. Phys. Lett. 80, 4561-4563 (2002). Jun.

  [24] cite 86 C.-T. Chen, P. Seneor, N.-C. Yeh, R. P. Vasquez, L. D. Bell, C. U. Jung, J. Y. Kim, Min-Seok Park, Heon-Jung Kim, and Sung-Ik Lee, “Strongly Correlated S-Wave Superconductivity in the N-Type Infinite-Layer Cuprate”, Phys. Rev. Lett. 88, 227002-1-4 (2002). Jun.

  [23] cite 1 C. U. Jung, J. Y. Kim, Min-Seok Park, Heon-Jung Kim, Mun-Seog Kim, and Sung-Ik Lee, “Substitution for Cu in the electron-doped infinite-layer superconductor Sr0.9La0.1CuO2, Ni kills superconductivity faster than Zn”, Phys. Rev. B 65, 172501-1-4 (2002). May.

  [22] cite 31 Kijoon H. P. Kim, W. N. Kang, Mun-Seog Kim, C. U. Jung, Hyeong-Jin Kim, Eun-Mi Choi, Min-Seok Park, and Sung-Ik Lee, “Negligible effect of grain boundaries on the supercurrent density in polycrystalline MgB2”, Physica C 370, 13-16 (2002). Apr.

  [21] cite 14 Kijoon H. P. Kim, Jae-Hyuk Choi, C. U. Jung, P. Chowdhury, Min-Seok Park, Heon-Jung Kim, J. Y. Kim, Zhonglian Du, Eun-Mi Choi, Mun-Seog Kim, W. N. Kang, Sung-Ik Lee, Gun Yong Sung, and Jeong Yong Lee, “Superconducting properties of well-shaped MgB2 single crystal”, Phys. Rev. B. 65, 100510-1-4 (2002). Mar.

  [20] cite 2 J. H. Jung, K. W. Kim, H. J. Lee, M. W. Kim, T. W. Noh, W. N. Kang, Hyeong-Jin Kim, Eun-Mi Choi, C. U. Jung , and Sung-Ik Lee, “Far-infrared transmission studies of c-axis oriented superconducting MgB2 thin film”, Phys. Rev. B. 65, 52413-1-4 (2002). Feb.

  [19] cite 31 C. U. Jung, J. Y. Kim, Mun-Seog Kim, Min-Seok Park, Heon-Jung Kim, Yushu Yao, S. Y. Lee, and Sung-Ik Lee, “Synthesis and pinning properties of the infinite-layer superconductor Sr0.9La0.1CuO2”, Physica C 366, 299-305 (2002). Feb.

  [18] cite 65 P. Seneor, C. -T. Chen, N.-C. Yeh, R.P. Vasquez, L.D. Bell, C. U. Jung, Min-Seok Park, Heon-Jung Kim, W. N. Kang, and Sung-Ik Lee, “Spectroscopic Evidence for Anisotropic S-Wave Pairing Symmetry in MgB2”, Phys. Rev. B, 65, 12505-1-4 (2002). Jan.

  [17] cite 7 C. U. Jung , Min-Seok Park, Mun-Seog Kim, Jae-Hyuk Choi, W. N. Kang, Kijoon H. P. Kim, and Sung-Ik Lee, “High pressure sintering of highly-dense MgB2 and its unique pinning properties”, Current Applied Physics, 1, 327-331 (2001). Nov.

  [16] cite 3 Gun Yong Sung, Sang Hyeob Kim, JunHo Kim, Dong Chul Yoo, Ju Wook Lee, Jeong Yong Lee, C. U. Jung, Min-Seok Park, W. N. Kang, Du Zhonglian, and Sung-Ik Lee, “Microstructure of the highly dense MgB2 Superconductor by transmission electron microscope”, Supercond. Sci. Tech. 14, 880-883 (2001). Oct.

  [15] cite 14 R. P. Vasquez, C. U. Jung, J. Y. Kim, Min-Seok Park, Heon-Jung Kim, and Sung-Ik Lee, “X-ray Photoemission Study of the Infinite-Layer Cuprate Superconductor Sr0.9La0.1CuO2”, J. Phys.: Condens. Matter 13, 7977-7985 (2001). Aug.

  [14] cite 115 W. N. Kang, C. U. Jung, Kijoon H. P. Kim, Min-Seok Park, S. Y. Lee, Hyeong-Jin Kim, Eun-Mi Choi, Kyung Hee Kim, Mun-Seog Kim, and Sung-Ik Lee, “Hole carrier in MgB2 characterized by the Hall Measurements”, Appl. Phys. Lett. 79, 982-984 (2001) Aug.

  [13] cite 55 R. P. Vasquez, C. U. Jung, Min-Seok Park, Heon-Jung Kim, J. Y. Kim, and Sung-Ik Lee, “X-ray Photoemission Study of MgB2”, Phys. Rev. B 64, 52 510-1-4 (2001). Aug.

  [12] cite 2 Mun-Seog Kim, C. U. Jung, Min-Seok Park, S. Y. Lee, Kijoon H. P. Kim, W. N. Kang, and Sung-Ik Lee, “Prominent bulk pinning effect in the newly discovered MgB2 superconductor”, Phys. Rev. B 64, 12511-1-4 (2001). Jul.

  [11] cite 99 C. U. Jung, Min-Seok Park, W. N. Kang, Mun-Seog Kim, Kijoon H. P. Kim, S. Y. Lee, and Sung-Ik Lee, “Effect of sintering temperature under high pressure in the superconductivity for MgB2”, Appl. Phys. Lett. 78, 4157-4159 (2001). Jun.

  [10] cite 469 W. N. Kang, Hyeong-Jin Kim, Eun-Mi Choi, C. U. Jung, and Sung-Ik Lee, “Epitaxial MgB2 superconducting thin films with a transition temperature of 39 Kelvin”, Science 292, 1521-1523 (2001). May.

  [09] cite 73 C. U. Jung, Min-Seok Park, W. N. Kang, Mun-Seog Kim, S. Y. Lee, and Sung-Ik Lee, “Temperature- and magnetic-field-dependences of normal state resistivity of MgB2 prepared at high temperature and high pressure condition”, Physica C 353, 162-166 (2001). May

  [08] cite 11 Ru-Shi Liu, Jin-Ming Chen, Ponnusamy Nachimuthu, Ravi Gundakaram, C. U. Jung, J. Y. Kim, and Sung-Ik Lee, “Evidence for electron-doped (n-type) superconductivity in the infinite-layer (Sr0.9La0.1)CuO2 compound by X-ray absorption near-edge spectroscopy”, Solid State Comm. 118, 367-370 (2001). May

  [07] cite 22 Mun-Seog Kim, C. U. Jung, Sung-Ik Lee, and A.Iyo, “Two-dimensional nature of four-layer cuprate superconductors “, Phys. Rev. B 63, 134513-1-5 (2001). April.

  [06] cite 5 C. U. Jung, J. Y. Kim, Mun-Seog Kim, S. Y. Lee, Sung-Ik Lee, and D. H. Ha, “Synthesis and characterization of the infinite-layer superconductor, Sr0.9La0.1CuO2”, Current Applied Physics 1, 157-161 (2001). April.

  [05] cite 1 Crystal Choi, Dong-Wook Kim, Dae Ho Kim, Ki-Deung Lim, T. W. Noh, C. U. Jung, Sangjun Oh, K.-B. Lee, “Anomalous Strain Relief and Physical Properties of La0.5Ca0.5MnO3 Films”, J. of Korean Phys. Soc. 36, 425-429 (2000). Jun.

  [04] cite 9 C. U. Jung, J. H. Kong, B. H. Park, T. W. Noh, and E. J. Choi, “Far-infrared transmission studies on a superconducting BaPb1-xBixO 3 thin film: effects of a carrier scattering rate”, Phys. Rev. B 59, 8869-8874 (1999). April.

  [03] cite 8 Kyoung Ha Kim, C. U. Jung, T. W. Noh, and S. C. Kim, “Optical indirect transitions of semiconducting BaPb1-xBixO3”, Phys. Rev. B 55, 15393-15396 (1997). Jun.

  [02] Kyoung Ha Kim, C. U. Jung, T. W. Noh, and S. C. Kim, “Transport and Optical Properties of Pulsed Laser Deposited BaPb1-xBixO3 thin Films”, J. of Korean Phys. Soc. 29, 515-521 (1996). Aug.

  [01] cite 1 S. -P. Lee, C. U. Jung, Y. K. Kim, W. Jo, and T. W. Noh, “Application of a bridge circuit for an inductive critical current density measurement of superconducting thin films”, Rev. Sci. Instrum. 64, 2385-2386 (1993). Aug.