SANGWOOK KIM

Last Updated :2025/11/07

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Assistant Professor
E-mail
sangwookhiroshima-u.ac.jp
Other Contact Details
1-3-1 Kagamiyama, Higashihiroshima, Hiroshima, Japan, Japan
TEL : (+81)81-82-424-7 FAX : (+81)81-82-424-7
Self-introduction
I am an assistant professor of 'Graduate School of Advanced Science and Engineering' in Hiroshima University. My major is the condensed matter physics, applied physics, and material science. My main research field is the development of electroceramics and crystal structure analysis with synchrotron radiation. Especially, I am interested in the study of the relationship between crystal structure and electrical properties in piezoelectric, ferroelectric, and dielectric. Currently, I am working as a young leading scientist in Applied physics and also trying to contribute to grow up young scientists in the field of applied physics and a related material science.

Basic Information

Academic Degrees

  • Master of Science, Changwon National University
  • Doctor of Engineering, University of Yamanashi

Educational Activity

  • [Bachelor Degree Program] School of Science : Physics : Physics
  • [Master's Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Physics Program
  • [Doctoral Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Physics Program

Research Fields

  • Engineering;Material engineering;Inorganic materials / Physical properties
  • Interdisciplinary science and engineering;Applied physics;Applied materials
  • Mathematical and physical sciences;Physics;Condensed matter physics I

Educational Activity

Course in Charge

  1. 2025, Undergraduate Education, First Semester, Laboratory in PhysicsI
  2. 2025, Undergraduate Education, Second Semester, Laboratory in PhysicsII
  3. 2025, Graduate Education (Master's Program) , First Semester, Exercise in Physics I
  4. 2025, Graduate Education (Master's Program) , Second Semester, Exercise in Physics II
  5. 2025, Graduate Education (Master's Program) , First Semester, Special Exsecise in Physics A
  6. 2025, Graduate Education (Master's Program) , Second Semester, Special Exsecise in Physics B

Research Activities

Academic Papers

  1. A dispersed buffer phase enables mitigated stress toward stable 4.6 V Graphite||NCM811 batteries, Materials Today, 88, 382-392, 20250814
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  2. Unexpected Planar Gliding and Microcracking Induced by Neutron Irradiation in SingleCrystalline LiCoO2 Cathodes, ACS Energy Letters, 10, 2701-2709, 20250511
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  3. a, FC Report, 42(2), 56-61, 20240420
  4. ★, Mechanism of Ferroelectricity and Piezoelectricity in Pseudocubic Bismuth-Based Ceramics, Journal of the Japanese Society of Physics, 80(5), 257-262, 20250505
  5. Role of the third composition and its A-site cation off-centering mechanism in ternary BiFeO3-BaTiO3-based piezoelectric ceramics, SCRIPTA MATERIALIA, 262, 20250601
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  6. Multiprobe analyses on nucleation and evolution of nanocrystallization process in a high saturation magnetization soft magnetic Fe-Si-B-P-Cu-C alloy, JOURNAL OF MATERIALS SCIENCE, 60(8), 3988-3998, 202502
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  7. Two types of cubic components coexisting in the paraelectric phase of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 revealed by synchrotron radiation X-ray diffraction, JAPANESE JOURNAL OF APPLIED PHYSICS, 63(8), 20240801
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  8. Gravity-induced structural deformation for enhanced ferroelectric performance in lead-free piezoelectric ceramics, SCRIPTA MATERIALIA, 244, 20240415
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  9. Lattice strain visualization inside a 400 nm single grain of BaTiO3 in polycrystalline ceramics by Bragg coherent X-ray diffraction imaging, JAPANESE JOURNAL OF APPLIED PHYSICS, 62(SM), 20231101
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  10. Crystal structure of heteroepitaxial BaTiO3-KNbO3 core-shell nanocomposite particles studied by synchrotron radiation X-ray diffraction, JAPANESE JOURNAL OF APPLIED PHYSICS, 62(SM), 20231101
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  11. Stability of ferroelectric phase and structural characteristics in oriented PbTiO3 ceramic coating formed by aerosol deposition method, APPLIED PHYSICS LETTERS, 122(14), 20230403
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  12. Composition dependence of structural and piezoelectric properties in Bi(Mg0.5Ti0.5)O-3-modified BaTiO3-BiFeO3 ceramics, JAPANESE JOURNAL OF APPLIED PHYSICS, 61(SN), 20221101
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  13. Influence of quenching temperature on piezoelectric and ferroelectrics T properties in BaTiO3-Bi(Mg1/2Ti1/2)O3-BiFeO3 ceramics, Ceramics International, 44, S199-S202, 20180811
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  14. Effect of thermal annealing on crystal structures and electrical properties in BaTiO3 ceramics, Journal of Applied Physics, 124, 034102, 20180719
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  15. Effect of ball-milling time and surfactant content for fabrication of 0.85(Bi0.5Na0.5)TiO3:0.15BaTiO3 green ceramics by electrophoretic deposition, Journal of the Ceramic Society of Japan, 126(7), 542-546, 20180701
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  16. Grain-size dependence of piezoelectric properties in thermally annealed BaTiO3 ceramics, Journal of the Ceramic Society of Japan, 126(7), 536-541, 20180701
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  17. In-situ electric field induced lattice strain response observation in BiFeO3­-BaTiO3 lead-free piezoelectric ceramics, Journal of the Ceramic Society of Japan, 126(5), 316-320, 20180501
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  18. Influence of grain size effect and Ba/Ti ratios on dielectric, ferroelectric, and piezoelectric properties of BaTiO3 ceramics, Japanese Journal of Applied Physics, 58, SLLC05, 20190904
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  19. Thermal annealing induced recovery of damaged surface layer for enhanced ferroelectricity in Bi-based ceramics, Japanese Journal of Applied Physics, 58, SLLD04, 20190821
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  20. Optimization of preparation conditions of highly textured piezoelectric (Bi0.5K0.5)TiO3 ceramics, Journal of the Ceramic Society of Japan, 127(6), 362-368, 20190601
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  21. Effect of A-site off-stoichiometry on ferroelectric and piezoelectric properties of BaTiO3­Bi(Mg1/2Ti1/2)O3­BiFeO3 ceramics, Journal of the Ceramic Society of Japan, 127(6), 369-373, 20190601
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  22. Effects of AC- and DC-bias field poling on piezoelectric properties of Bi-based ceramics, Journal of the Ceramic Society of Japan, 127(6), 353-356, 20190601
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  23. Visualization of spontaneous electronic polarization in Pb ion of ferroelectric PbTiO3 by synchrotron-radiation x-ray diffraction, APPLIED PHYSICS LETTERS, 117(25), 20201221
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  24. Piezoelectricity in perovskite-type pseudo-cubic ferroelectrics by partial ordering of off-centered cations, Communications materials, 1, 71, 20201006
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  25. Piezoelectricity in perovskite-type pseudo-cubic ferroelectrics by partial ordering of off-centered cations, COMMUNICATIONS MATERIALS, 1(1), 20201006
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  26. Charge order of bismuth ions and nature of chemical bonds in double perovskite- type oxide BaBiO3 visualized by synchrotron radiation X-ray diffraction, Japanese Journal of Applied Physics, 59, 095505, 20200904
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  27. Electric-field-induced structural changes for cubic system of lead-free and lead-based perovskite-type oxides, Japanese Journal of Applied Physics, 59, SPPA05, 20200805
  28. Fabrication of <111>-oriented BaTiO3 ceramics by high magnetic field electrophoretic deposition using hexagonal-tetragonal co-existing BaTiO3 powder, Journal of the Ceramic Society of Japan, 128(8), 469-474, 20200801
  29. Synthesis of Pb(Zr, Ti)O-3 fine ceramic powder at room temperature by dry mechanochemical solid-state reaction evaluated using synchrotron radiation X-ray diffraction, JAPANESE JOURNAL OF APPLIED PHYSICS, 60(SF), 20211101
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  30. Material softening by cation off-centering in Bi-based lead-free piezoelectric ceramics, JAPANESE JOURNAL OF APPLIED PHYSICS, 60(SF), 20211101
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  31. A-site cation off-centering contribution on ferroelectricity and piezoelectricity in pseudo-cubic perovskite structure of Bi-based lead-free piezoelectrics, Scripta Materialia, 205, 114176, 20210815
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  32. Variation of leakage current conduction mechanism by heat treatment in Bi-based lead-free piezoelectric ceramics, Journal of Applied Physics, 129, 094102, 20210307
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  33. Preparation and investigation of hexagonal-tetragonal BaTiO3 powders, Journal of the Ceramic Society of Japan, 129(2), 91-96, 20210201
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  34. Fabrication of (Bi0.5K0.5)TiO3 modified BaTiO3-Bi(Mg0.5Ti0.5)O3-BiFeO3 piezoelectric ceramics, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 41(7), 4108-4115, 202107
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  35. The ferroelectric phase transition in a 500 nm sized single particle of BaTiO3 tracked by coherent X-ray diffraction, JAPANESE JOURNAL OF APPLIED PHYSICS, 61, SN1008, 20221101
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  36. ★, Lead-Free BiFeO3-Based Piezoelectrics: A Review of Controversial Issues and Current Research State, Materials, 15, 4388, 20220621
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  37. Mn-Nb co-doping in barium titanate ceramics by different solid-state reaction routes for temperature stable and DC-bias free dielectrics, CERAMICS INTERNATIONAL, 48(2), 2154-2160, 20220115
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  38. Composition dependence of structural and piezoelectric properties in Bi (Mg0.5Ti0.5)O3-modified BaTiO3-BiFeO3 ceramics, Japanese Journal of Applied Physics, 61, SN1033, 20221101
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  39. Local structure analysis of BiFeO3-BaTiO3 solid solutions, Japanese Journal of Applied Physics, 61, SN1022, 20221101
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  40. Development of superparaelectric BaTiO3 system ceramics through heterovalent Mn-Nb co-doping for DC-bias free dielectrics, Japanese Journal of Applied Physics, 61, SN1023, 20221101
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  41. ★, Piezoelectric Actuation Mechanism Involving Extrinsic Nanodomain Dynamics in Lead-Free Piezoelectrics, Advanced Materials, 35, 2208717, 20230209
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