Kwon, Yong Seung (권용성)


Physics Materials Science


● High Tc Superconductors and magnetic materials
● Thermoelectric Materials


Ph. D., Tohoku University, JAPAN

Professor at Sungkyunkwan University
Invited Professor at Nagoya University
Invited Professor at the Institute for Molecular Science, Japan






Lab Website

Our Researches

The magnetic order observed at x=0 is completely suppressed at x=0.3 and
non-Fermi-liquid behavior appears at the critical concentration,

which is analyzed in terms of two-dimensional
antiferromagnetic quantum fluctuations. ( PHYSICAL REVIEW B 71, 214433 (2005) )

Representative Publications

“Peierls distortion as a route to high thermoelectric performance in In4Se3- crystals”, Jong-Soo Rhyee, Kyu Hyoung Lee, Sang Mock Lee, Eunseog Cho, Sang Il Kim, Eunsung Lee, Yong Seung Kwon, Ji Hoon Shim, Gabriel Kotliar , Nature 459 (2009) 965 [IF=40.137]

“Majorana fermions in the Kitaev quantum spinsystem α-RuCl3”, Seung-Hwan Do, Sang-Youn Park, Junki Yoshitake, Joji Nasu, Yukitoshi Motome,Yong Seung Kwon, D. T. Adroja, D. J. Voneshen, Kyoo Kim, T.-H. Jang, J.-H. Park,Kwang-Yong Choi and Sungdae Ji, Nat. Phys. 13, 1079-1084 (2017) [IF=22.806]

“Direct observation of dispersive Kondo resonance peaks in a heavy fermion system”, H. J. Im, T. Ito, H.-D. Kim, S. Kimura, K. E. Lee, J. B. Hong, Y. S. Kwon1, A. Yasui, H. Yamagami , Phys. Rev. Lett. 100 (2008) 176402 [IF=8.462]

“Evidence for a Field-Induced Quantum Spin Liquid in α-RuCl3”,S.-H. Baek, S.-H. Do, K.-Y. Choi, Y. S. Kwon and A. U. B. Wolter, Phys. Rev. Lett. 119, 037201 (2017) [IF=8.462]

“Thermal activation energy of 3Dvortex matter in NaFe1−xCoxAs(x=0.01, 0.03 and 0.07) singlecrystals”, W. J. Choi, Y. I. Seo, D. Ahmad & Yong Seung Kwon, Sci. Rep. 7, 10900 (2017) [IF=4.259]

“Optical properties of optimally doped single-crystal Ca8.5La1.5(Pt3As8)(Fe2As2)5”, Yu-il Seo, Woo-Jae Choi, Shin-ichi Kimura, Yunkyu Bang, and Yong Seung Kwon, Phys. Rev. B 95, 094510 (2017) [IF=3.836]