Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Kim, Choong H."'
Publikováno v:
Scientific Reports 13, 12445 (2023)
Identifying the magnetic state of materials is of great interest in a wide range of applications, but direct identification is not always straightforward due to limitations in neutron scattering experiments. In this work, we present a machine-learnin
Externí odkaz:
http://arxiv.org/abs/2302.13329
Autor:
Ko, Eun Kyo, Hahn, Sungsoo, Sohn, Changhee, Lee, Sangmin, Lee, Seung-Sup B., Sohn, Byungmin, Kim, Jeong Rae, Son, Jaeseok, Song, Jeongkeun, Kim, Youngdo, Kim, Donghan, Kim, Miyoung, Kim, Choong H., Kim, Changyoung, Noh, Tae Won
Hund's rule coupling ($\textit{J}$) has attracted much attention recently for its role in the description of the novel quantum phases of multi orbital materials. Depending on the orbital occupancy, $\textit{J}$ can lead to various intriguing phases.
Externí odkaz:
http://arxiv.org/abs/2210.05621
Publikováno v:
Nano Letters 22, 8281 (2022)
Berry curvature (BC) governs topological phases of matter and generates anomalous transport. When a magnetic field is applied, phonons can acquire BC indirectly through spin-lattice coupling, leading to a linear phonon Hall effect. Here, we show that
Externí odkaz:
http://arxiv.org/abs/2209.10769
Autor:
Kim, Jeong Rae, Sohn, Byungmin, Lee, Hyeong Jun, Lee, Sangmin, Ko, Eun Kyo, Hahn, Sungsoo, Lee, Sangjae, Kim, Younsik, Kim, Donghan, Kim, Hong Joon, Kim, Youngdo, Son, Jaeseok, Ahn, Charles H., Walker, Frederick J., Go, Ara, Kim, Miyoung, Kim, Choong H., Kim, Changyoung, Noh, Tae Won
Interfaces between dissimilar correlated oxides can offer devices with versatile functionalities. In that respect, manipulating and measuring novel physical properties of oxide heterointerfaces are highly desired. Yet, despite extensive studies, obta
Externí odkaz:
http://arxiv.org/abs/2203.04244
Autor:
Sohn, Byungmin, Kim, Jeong Rae, Kim, Choong H., Lee, Sangmin, Hahn, Sungsoo, Kim, Younsik, Huh, Soonsang, Kim, Donghan, Kim, Youngdo, Kyung, Wonshik, Kim, Minsoo, Kim, Miyoung, Noh, Tae Won, Kim, Changyoung
Publikováno v:
Nat. Commun. 12, 6171 (2021)
Correlated electrons in transition metal oxides (TMOs) exhibit a variety of emergent phases. When TMOs are confined to a single-atomic-layer thickness, experiments so far have shown that they usually lose diverse properties and become insulators. In
Externí odkaz:
http://arxiv.org/abs/2109.11090
Publikováno v:
Phys. Rev. B 104, 165138 (2021)
A van Hove singularity (VHS) often significantly amplifies the electronic instability of a crystalline solid, including correlation-induced phenomena such as Hund's metallicity. We perform a systematic study on the interplay between Hund's coupling a
Externí odkaz:
http://arxiv.org/abs/2107.05906
Autor:
Kim, Minsoo, Kwon, Junyoung, Kim, Choong H., Kim, Younsik, Chung, Daun, Ryu, Hanyoung, Jung, Jongkeun, Kim, Beom Seo, Song, Dongjoon, Denlinger, Jonathan D., Han, Moonsup, Yoshida, Yoshiyuki, Mizokawa, Takashi, Kyung, Wonshik, Kim, Changyoung
The heavy fermion state with Kondo-hybridization (KH), usually manifested in f-electron systems with lanthanide or actinide elements, was recently discovered in several 3d transition metal compounds without f-electrons. However, KH has not yet been o
Externí odkaz:
http://arxiv.org/abs/2102.09760
Autor:
Cho, Hwanbeom, Kim, Choong H., Lee, Yongmoon, Komatsu, Kazuki, Cho, Byeong-Gwan, Cho, Deok-Yong, Kim, Taehun, Kim, Chaebin, Kim, Younghak, Koo, Tae Yeong, Noda, Yukio, Kagi, Hiroyuki, Khomskii, Daniel I., Seoung, Donghoon, Park, Je-Geun
Publikováno v:
Phys. Rev. B 103, 081101 (2021)
The spin-orbit entangled (SOE) Jeff-state has been a fertile ground to study novel quantum phenomena. Contrary to the conventional weakly correlated Jeff=1/2 state of 4d and 5d transition metal compounds, the ground state of CuAl2O4 hosts a Jeff=1/2
Externí odkaz:
http://arxiv.org/abs/2101.00754
Autor:
Kyung, Wonshik, Kim, Choong H., Kim, Yeong Kwan, Kim, Beomyoung, Kim, Chul, Jung, Woobin, Kwon, Junyoung, Kim, Minsoo, Bostwick, Aaron, Denlinger, Jonathan D., Yoshida, Yoshiyuki, Kim, Changyoung
Rotation of MO6 (M = transition metal) octahedra is a key determinant of the physical properties of perovskite materials. Therefore, tuning physical properties, one of the most important goals in condensed matter research, may be accomplished by cont
Externí odkaz:
http://arxiv.org/abs/2012.14105
Autor:
Kim, Taehun, Kim, Choong H., Jeong, Jaehong, Park, Pyeongjae, Park, Kisoo, Lee, Ki Hoon, Leiner, Jonathan C., Ishikawa, Daisuke, Baron, Alfred Q. R., Hiroi, Zenji, Park, Je-Geun
Spin-orbit coupling (SOC) is essential in understanding the properties of 5d transition metal compounds, whose SOC value is large and almost comparable to other key parameters. Over the past few years, there have been numerous studies on the SOC-driv
Externí odkaz:
http://arxiv.org/abs/2010.10684