187 citations · 771 across the 9 of their papers we have counts for
9 papers
Structural Phase Transition and Interlayer Coupling in Few-Layer 1T' and Td MoTe2
Yeryun Cheon, Soo Yeon Lim, Kangwon Kim +1
We performed polarized Raman spectroscopy on mechanically exfoliated few-layer MoTe2 samples and observed both 1T' and Td phases at room temperature. Few-layer 1T' and Td MoTe2 exh…
Thickness dependence of antiferromagnetic phase transition in Heisenberg-type MnPS3
Soo Yeon Lim, Kangwon Kim, Sungmin Lee +2
The behavior of 2-dimensional (2D) van der Waals (vdW) layered magnetic materials in the 2D limit of the few-layer thickness is an important fundamental issue for the understanding…
Antiferromagnetic ordering in van der Waals two-dimensional magnetic material MnPS3 probed by Raman spectroscopy
Kangwon Kim, Soo Yeon Lim, Jungcheol Kim +8
Magnetic ordering in the two-dimensional limit has been one of the most important issues in condensed matter physics for the past several decades. The recent discovery of new magne…
Low-Frequency Raman Spectroscopy of Few-Layer 2H-SnS2
Tharith Sriv, Kangwon Kim, Hyeonsik Cheong
We investigated interlayer phonon modes of mechanically exfoliated few-layer 2H-SnS2 samples by using room temperature low-frequency micro-Raman spectroscopy. Raman measurements we…
Variation of photoluminescence spectral line shape of monolayer WS2
Yongjae Kwon, Kangwon Kim, Wontaek Kim +2
The origin of the variation of photoluminescence (PL) spectra of monolayer tungsten disulfide (WS2) is investigated systematically. Dependence of the PL spectrum on the excitation…
Excitonic Resonance Effects and Davydov Splitting in Circularly Polarized Raman Spectra of Few-Layer WSe2
Sanghun Kim, Kangwon Kim, Jae-Ung Lee +1
Few-layer tungsten diselenide (WSe2) is investigated using circularly polarized Raman spectroscopy with up to eight excitation energies. The main E2g1 and A1g modes near 250 cm-1 a…