Growth of superconducting thin films by a PLD (pulsed laser deposition) and a HPCVD (hybrid physical-chemical vapor deposition) techniques and study of physical properties for superconductors such as cuprates superconductors, Fe-based superconductors, and MgB2 superconductors. By using PPMS (physical property measurement system) and MPMS ( magnetic property measurement system), we investigate vortex dynamics in the mixed states in the wide temperature ranges of 2-300 K and the magnetic field ranges up to 9 Tesla.
학력
(PhD) 1994, Physics department, Sungkyunkwan University
약력/경력
2005-present, Professor, Sungkyunkwan University
2003-2005, Assistant professor, Pukyung University
1995-2003, Research professor, POSTECH and University of Houston
2016-present, Vice-president, Korean superconductivity society
2013-2015, Editor in chief, Progress in superconductivity
2012-2014, Review board member, National research foundation of Korea
학술지 논문
(2023)
Effects of irradiation on superconducting properties of small-grained MgB2 thin films.
CHINESE PHYSICS B.
32,
12
(2023)
Roles of Fe-ion irradiation on MgB2 thin films: Structural, superconducting,
and optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS.
968,
(2023)
Correlation between electron-phonon coupling and superconductivity of Sn2+ion irradiated MgB2-thin films.
CERAMICS INTERNATIONAL.
49,
12
(2022)
Hall effects of c-axis-oriented Mg1_xAlxB2 thin film.
MATERIALS LETTERS.
330,
1
(2022)
Effects of Sn-ion irradiation on local structure and flux pinning properties of MgB2 thin films.
CERAMICS INTERNATIONAL.
49,
2
(2022)
High critical current density and high-tolerance superconductivity in high-entropy alloy thin films.
NATURE COMMUNICATIONS.
13,
1
(2022)
Improvement of bulk superconducting current capability of MgB2 films using surface degradation.
Scripta Materialia.
209,
(2022)
Influence of disorder strength on the superconducting mechanism of MgB2.
SUPERCONDUCTOR SCIENCE TECHNOLOGY.
35,
1
(2021)
Competition between ferromagnetism and superconductivity in GdBa2Cu3O7-x/La0.7Sr0.3MnO3 bilayers with varying thickness.
CERAMICS INTERNATIONAL.
48,
1
(2021)
Field-induced quantum breakdown of superconductivity in magnesium diboride.
NPG ASIA MATERIALS.
13,
1
(2021)
Tuning Flux Pinning in GdBa2Cu3O7-x/La0.7Sr0.3MnO3 Epitaxial Bilayers via Substrate-Induced Strain.
CRYSTAL GROWTH & DESIGN.
21,
8
(2021)
Local structure and superconductivity in (Bi1.6Pb0.4Sr2Ca2Cu3O10+6)1-x(Fe3O4)x compounds.
CERAMICS INTERNATIONAL.
47,
12
(2021)
Effects of surface damage on critical current density in MgB2 thin films.
CURRENT APPLIED PHYSICS.
22,
-
(2021)
Electron-phonon coupling behavior in MgB2 films with various thicknesses of ZnO buffer layer on metallic substrates.
SOLID STATE COMMUNICATIONS.
323,
(2021)
Unraveling the Scaling Characteristics of Flux Pinning Forces in Bi1.6Pb0.4Sr2Ca2-xNaxCu3O10+delta Superconductors.
JOURNAL OF ELECTRONIC MATERIALS.
50,
3
(2019)
Angle-dependent Hall effect and vortex dynamics in single-crystalline MgB2 thin films.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY.
32,
11
(2019)
Effects of oxygen ion implantation on single-crystalline MgB2 thin films.
JOURNAL OF APPLIED PHYSICS.
125,
2
(2019)
Influence of carbon-ion irradiation on the superconducting critical properties of MgB2 thin films.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY.
32,
2
(2018)
Enhancements of Critical Current Density in the Bi-Pb-Sr-Ca-Cu-O Superconductor by Na Substitution.
MATERIALS TRANSACTIONS.
59,
7
특허/프로그램
철-비소 기반 초전도성 박막 제조방법.
10-2009-0077099.
20090820.
대한민국
철-비소 기반 초전도성 박막용 타겟 제조방법.
10-2009-0077100.
20090820.
대한민국
Superconducting Magnesium Diboride thin film and method and apparatus for fabricating the same.
US 7,189,425 B2.
20070313.
미국
초전도 마그네슘 보라이드 (MgB2) 박막 그 제조방법 및 그 장치.
3835685.
20060804.
일본
Superconducting Magnesium Diboride thin film and method and apparatus for fabricating the same.
2377395.
20031231.
영국
초전도 마그네슘 보라이드 (MgB2) 박막 그 제조방법 및 그 장치.
0413533.
20031218.
대한민국
학술회의논문
(2005)
Mixed-state Hall effect of MgB2 thin films.
The Korean superconductivity society meeting 2005.
대한민국
(2003)
Bi, MgB2, and other materials.
Annual meeting of the American ceramic society.
미국
(2003)
Fabrication of superconducting MgB2 thin films by pulsed laser deposition method and its transport property.
Annual Meeting of the American Ceramic Society.
미국
(2001)
Growth and transport properties of c-axis-oriented MgB2 thin films.
14th international symposium on superconductivity.
일본
