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Jae-Hyeon Ko

Hallym University Department of Physics Chuncheon Gangwondo 200-702 Korea Chuncheon Gangwondo 200-702 Korea

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Terahertz time-domain spectroscopic study on an oxide glass with entropic elasticity

Jeonghyuk Kim,Tatsuya Mori, Seiji Inaba,Takanari Kashiwagi,Yasuhiro Fujii, Suguru Kitani,Hitoshi Kawaji,Akitoshi Koreeda, Soo Han Oh,Jae-Hyeon Ko,Seiji Kojima

Bulletin of the American Physical Society, (2020)

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Acoustic anomalies and relaxation dynamics of relaxor ferroelectric Na1/2Bi1/2TiO3 single crystals studied by using Brillouin spectroscopy

Soo Han Oh,Jae-Hyeon Ko,Xiaobing Li,Haosu Luo

Current Applied Physics, no. 7 (2020): 835-840

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The effect of the reflective property of a reflection film on the performance of backlight units with quantum-dot films for LCD applications

Gi Jung Lee, Jung-Gyun Lee, Younduk Kim, Taehee Park, Young Wook Ko,Jae-Hyeon Ko

Journal of information display, pp.1-7, (2020)

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Simulation Study on the Improvement of the Luminance and the Color Uniformities of Integrated Quantum-Dot Backlights for LCD Applications

Jung-Gyun Lee,Jae-Hyeon Ko

Journal of the Korean Physical Society, no. 3 (2020): 264-269

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Defect-induced intermediate phase appearance in a single PbZrO3 crystal

D. Kajewski,J. Kubacki,K. Balin, I. Lazar, J. Piecha,A. Bussmann-Holder,J.-H. Ko,K. Roleder

Journal of Alloys and Compounds, (2020): 152090

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Anomalous longitudinal acoustic phonon and elastic constant in potassium alum KAl(SO4)2·12H2O single crystal studied by Brillouin spectroscopy

Jae-Hyeon Ko, Soo Han Oh,Kwang-Sei Lee

Journal of Physics and Chemistry of Solids, (2020): 109364

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Effect of Sn Addition on Thermodynamic, Dielectric, Optical and Acoustic Properties of Lead Hafnate

Anna Piekara,Jae-Hyeon Ko, Jeong Woo Lee, Syed Furqan Ul Hassan Naqvi,Irena Jankowska-Sumara,Andrzej Majchrowski, Dariusz Zasada, Maciej Chrunik, Maria Podgórna

Physica Status Solidi (a), (2020)

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Influence of Nb5+ ions on phase transitions and polar disorder above TC in PbZrO3 studied by Raman spectroscopy

D. Kajewski,I. Jankowska‐Sumara,J.‐H. Ko,J.W. Lee,R. Sitko,A. Majchrowski,A. Bussmann‐Holder,K. Roleder

Journal of the American Ceramic Society, (2020)

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Non-relaxor behaviour of low-frequency vibration spectra of relaxor ferroelectric PbCo1/3Nb2/3O3: evidences from Brillouin and Raman scattering measurements

Jeongwoo Lee,Jae-Hyeon Ko, Alexander I Fedoseev, Tatjana A Smirnova,Sergey G Lushnikov

Journal of physics. Condensed matter : an Institute of Physics journal, no. 2 (2020): 025402

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Multiple Softening of Low-Frequency Raman Modes of Tungsten-Bronze Lead Barium Niobate Relaxor Ferroelectric Single Crystals

Furqan Ul Hassan Naqvi,Jae-Hyeon Ko,Ki-Soo Lim

Journal of the Korean Physical Society, no. 10 (2020): 935-939

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Elastic Constants and Quasi-elastic Central Peaks of Ferroelectric Lead Barium Niobate Single Crystals Studied by Brillouin Spectroscopy

Furqan Ul Hassan Naqvi,Jae-Hyeon Ko,Ki-Soo Lim

Journal of the Korean Physical Society, no. 4 (2020): 352-355

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Polymorphic phase transition in BaTiO3 by Ni doping

Nguyen Xuan Duong,Jong-Seong Bae, Jongchul Jeon, So Yeon Lim, Soo Han Oh,Aman Ullah, Muhammad Sheeraz, Jin San Choi,Jae-Hyeon Ko, Sang Mo Yang, Kyou-Hyun Kim,Ill Won Kim

Ceramics International, no. 13 (2019): 16305-16310

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Chlorobenzene-treated carbon nanotubes in a dielectric layer and their impact on inorganic electroluminescence

So-Yeon Jun, Hyuna Lim,Donggeun Jung,Jae-Hyeon Ko,Maeng-Je Seong,Jin-Young Kim,SeGi Yu

Carbon, (2019): 462-467

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Finite-Difference Time-Domain Simulation of Fractal-Like Microlens Arrays for High Outcoupling Efficiency of Organic Light-Emitting Diodes

Ji Soo Park,Jae-Hyeon Ko, Jong Wan Lee

Journal of nanoscience and nanotechnology, no. 3 (2019): 1695-1698

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Vibrational properties of PbHf0.975Sn0.025O3 single crystal at high pressures

I. Jankowska-Sumara, J.-T. Hong,B. W. Lee,J.-H. Ko, M. Podgórna,A. Majchrowski, A. Piekara

Journal of Applied Physics, no. 1 (2019): 014101

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Optimization of the optical structure of thin direct-lit LED backlights for LCD applications by using micro-LEDs

Jung-Gyun Lee,Jae-Hyeon Ko

Journal of information display, pp.1-6, (2019)

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Anomalous behaviors of elastic constants of lead-free piezoelectric (Na1/2Bi1/2)TiO3-5%BaTiO3 single crystals studied by Brillouin spectroscopy

Byoung Wan Lee, Jeong Woo Lee,Jae-Hyeon Ko,Xiaobing Li,Haosu Luo

no. 17 (2019): 174103

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Paraelectric Elastic Properties of Reduced and Heterovalently Doped BaTiO3 Single Crystals Studied by Using Brillouin Spectroscopy

Jeong Woo Lee,Jae-Hyeon Ko,Krystian Roleder, D. Rytz

Journal of the Korean Physical Society, no. 5 (2019): 404-408

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Acoustic phonon dynamics of Pb(Sc1/2Ta1/2)O3 ceramics studied by Brillouin scattering spectroscopy

Taro Aso,Yasuhiro Fujii,Akitoshi Koreeda, Soo Han Oh, Jeong Woo Lee,Jae-Hyeon Ko, Chang-Hyo Hong,Wook Jo

JAPANESE JOURNAL OF APPLIED PHYSICS, (2019)

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Additional phase transition in a PbZr0.87Ti0.13O3 single crystal

Iwona Lazar, Soo Han Oh,Jae-Hyeon Ko,Paweł Zajdel,Dariusz Kajewski,Andrzej Majchrowski, Julita Piecha, Janusz Koperski,Andrzej Soszyński,Krystian Roleder

Journal of Physics D, no. 11 (2019): 115302

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