K
Kangwon Kim
Researcher at Sogang University
Publications - 26
Citations - 1323
Kangwon Kim is an academic researcher from Sogang University. The author has contributed to research in topics: Raman spectroscopy & van der Waals force. The author has an hindex of 16, co-authored 26 publications receiving 921 citations.
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Journal ArticleDOI
Suppression of magnetic ordering in XXZ-type antiferromagnetic monolayer NiPS 3
Kangwon Kim,Soo Yeon Lim,Jae-Ung Lee,Sungmin Lee,Tae Yun Kim,Kisoo Park,Gun Sang Jeon,Cheol-Hwan Park,Je-Geun Park,Hyeonsik Cheong +9 more
TL;DR: In this paper, it was shown that the XXZ-type antiferromagnetic order of a magnetic van der Waals material, NiPS3, behaves upon reducing the thickness and ultimately becomes unstable in the monolayer limit.
Journal ArticleDOI
Suppression of magnetic ordering in XXZ-type antiferromagnetic monolayer NiPS3
Kangwon Kim,Soo Yeon Lim,Jae-Ung Lee,Sungmin Lee,Tae Yun Kim,Kisoo Park,Gun Sang Jeon,Cheol-Hwan Park,Je-Geun Park,Hyeonsik Cheong +9 more
TL;DR: The suppression of magnetic order and 2D XY behavior in XXZ-type antiferromagnet NiPS3 when approaching the monolayer limit by Raman spectroscopy is shown.
Journal ArticleDOI
Antiferromagnetic ordering in van der Waals 2D magnetic material MnPS 3 probed by Raman spectroscopy
Kangwon Kim,Soo Yeon Lim,Jungcheol Kim,Jae-Ung Lee,Jae-Ung Lee,Sungmin Lee,Pilkwang Kim,Kisoo Park,Suhan Son,Cheol-Hwan Park,Je-Geun Park,Hyeonsik Cheong +11 more
TL;DR: In this article, the authors investigated the magnetic ordering of MnPS3, a two-dimensional antiferromagnetic material of Heisenberg-type, by Raman spectroscopy from bulk all the way down to bilayer.
Journal ArticleDOI
Coherent many-body exciton in van der Waals antiferromagnet NiPS3.
Soonmin Kang,Kangwon Kim,Beom Hyun Kim,Jonghyeon Kim,Kyung Ik Sim,Jae-Ung Lee,Jae-Ung Lee,Sungmin Lee,Kisoo Park,Seokhwan Yun,Taehun Kim,Abhishek Nag,A. C. Walters,M. Garcia-Fernandez,Jiemin Li,Laurent Chapon,Ke-Jin Zhou,Young-Woo Son,Jae Hoon Kim,Hyeonsik Cheong,Je-Geun Park +20 more
TL;DR: It is shown that a spin–orbit-entangled exciton state appears below the Néel temperature of 150 kelvin in NiPS3, an antiferromagnetic van der Waals material, and is found to arise from many-body states of a Zhang–Rice singlet.
Journal ArticleDOI
Davydov Splitting and Excitonic Resonance Effects in Raman Spectra of Few-Layer MoSe2
TL;DR: The Raman spectra of few-layer MoSe2 were measured with eight excitation energies and it is found that the second-nearest-neighbor interlayer interaction amounts to about 30% of the nearest-NEighbor interaction for both in-plane and out-of-plane vibrations.