Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Kwang Yong Choi"'
Autor:
Subhasis Samanta, Hwiwoo Park, Chanhyeon Lee, Sungmin Jeon, Hengbo Cui, Yong-Xin Yao, Jungseek Hwang, Kwang-Yong Choi, Heung-Sik Kim
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Kagome lattice has been actively studied for the possible realization of frustration-induced two-dimensional flat bands and a number of correlation-induced phases. Currently, the search for kagome systems with a nearly dispersionless flat ba
Externí odkaz:
https://doaj.org/article/eca81e1a78f348fdb6d5c7848ead4d1a
Autor:
Deog Kyeom Kim, Jung-Kyu Lee, Eun Young Heo, Hyun Woo Lee, Chang Hoon Lee, Hyo Jin Lee, Juye Bae, Kwang Yong Choi, Tae Yun Park
Publikováno v:
BMJ Open Respiratory Research, Vol 11, Iss 1 (2024)
Objective We aimed to elucidate the clinical factors associated with acute exacerbation and disease progression in young patients with chronic obstructive pulmonary disease (COPD).Methods This retrospective longitudinal observational study included p
Externí odkaz:
https://doaj.org/article/ad46dcef560a4898bc4f698f692f6c0b
Autor:
Jae-Ho Han, Seung-Hwan Do, Kwang-Yong Choi, Sang-Youn Park, Jae-You Kim, Sungdae Ji, Ki-Seok Kim, Jae-Hoon Park
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-12 (2023)
Abstract We report a quantum criticality crossover representing two different universal scaling behaviors in a Kitaev quantum magnetic material α-RuCl3. α-RuCl3 presents both a symmetry-breaking antiferromagnetic order and a long-range entangled to
Externí odkaz:
https://doaj.org/article/7c24544a732c42328aa9714dadfd8f50
Autor:
Kwang Yong Choi, Dong Hyun Kim, Kwang Nam Jin, Hyo Jin Lee, Tae Yun Park, Borim Ryu, Jung-Kyu Lee, Eun Young Heo, Deog Kyeom Kim, Hyun Woo Lee
Publikováno v:
Annals of Medicine, Vol 54, Iss 1, Pp 2998-3006 (2022)
Background Limited data are available in COVID-19 patients on the prediction of treatment response to systemic corticosteroid therapy based on systemic inflammatory markers. There is a concern whether the response to systemic corticosteroid is differ
Externí odkaz:
https://doaj.org/article/ad0a9196b2d74aaba40fa6bfca635ec7
Autor:
Dirk Wulferding, Youngsu Choi, Seungyeol Lee, Mikhail A. Prosnikov, Yann Gallais, Peter Lemmens, Chengchao Zhong, Hiroshi Kageyama, Kwang-Yong Choi
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-6 (2021)
Abstract The Shastry–Sutherland compound SrCu2(BO3)2 constituting orthogonally coupled dimers harbors an S = 0 singlet ground state. The confluence of strong interdimer interaction and frustration engenders a spectrum of low-energy excitations incl
Externí odkaz:
https://doaj.org/article/27b18c20f01b4db0bc8e68cf0f0e1c65
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
Spinons are quasisparticles that can appear in anisotropic triangular lattices, however, probing the statistics and dynamics of such excitations is experimentally challenging. Here, Choi et al present Raman spectroscopy measurements of anisotropic tr
Externí odkaz:
https://doaj.org/article/f4195bfcdf6042d69f4558d138745152
Autor:
Hikaru Takeda, Jiancong Mai, Masatoshi Akazawa, Kyo Tamura, Jian Yan, Kalimuthu Moovendaran, Kalaivanan Raju, Raman Sankar, Kwang-Yong Choi, Minoru Yamashita
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p L042035 (2022)
We investigate both the longitudinal thermal conductivity (κ_{xx}) and the planar thermal Hall conductivity (κ_{xy}) in the Kitaev spin liquid candidate of the cobalt-based honeycomb antiferromagnet Na_{2}Co_{2}TeO_{6} in a magnetic field (B) appli
Externí odkaz:
https://doaj.org/article/893e1d5712f24c00872e7acb4401712d
Publikováno v:
npj Quantum Materials, Vol 6, Iss 1, Pp 1-9 (2021)
Abstract The van der Waals Kitaev magnet α-RuCl3 has recently garnered considerable attention due to its possible realization of topological spin liquids. Combining Raman spectroscopy with numerical calculations, we report here the thickness depende
Externí odkaz:
https://doaj.org/article/0ca7cb15a247427cbb4dfba3c1b01a56
Autor:
Dirk Wulferding, Youngsu Choi, Seung-Hwan Do, Chan Hyeon Lee, Peter Lemmens, Clément Faugeras, Yann Gallais, Kwang-Yong Choi
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
α-RuCl3 has properties consistent with predictions of a phase hosting fractionalized Majorana fermions but that could also be explained by conventional magnetic excitations. Here the authors find evidence for fractionalized quasiparticles by studyin
Externí odkaz:
https://doaj.org/article/63520ed770ac46a3ac7fb50cb304f71e
Autor:
Dirk Wulferding, Seungyeol Lee, Youngsu Choi, Qiangwei Yin, Zhijun Tu, Chunsheng Gong, Hechang Lei, Saqlain Yousuf, Jaegu Song, Hanoh Lee, Tuson Park, Kwang-Yong Choi
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023215 (2022)
Fermi-surface fluctuations and lattice instabilities in the two-dimensional metallic kagome superconductor CsV_{3}Sb_{5} are elucidated via polarization-resolved Raman spectroscopy. The presence of a weak electronic continuum in high-quality samples
Externí odkaz:
https://doaj.org/article/e71297293c2e47fc9b8406d8fb6b52ee