Zobrazeno 1 - 10
of 334
pro vyhledávání: '"Kim, Heung-Sik"'
Co-based honeycomb magnets have been actively studied recently for the potential realization of emergent quantum magnetism therein such as the Kitaev spin liquid. Here we employ density functional and dynamical mean-field theory methods to examine a
Externí odkaz:
http://arxiv.org/abs/2406.18003
Autor:
Cossu, Fabrizio, Nafday, Dhani, Palotás, Krisztian, Biderang, Mehdi, Kim, Heung-Sik, Akbari, Alireza, Di Marco, Igor
We employ ab-initio electronic structure calculations to investigate the charge-density waves and periodic lattice distortions in bilayer 2H-NbSe$_2$. We demonstrate that the vertical stacking can give rise to a variety of patterns that may lower the
Externí odkaz:
http://arxiv.org/abs/2404.01807
Autor:
Cossu, Fabrizio, Nascimento, Jùlio Alves Do, Cavill, Stuart A., Di Marco, Igor, Lazarov, Vlado K., Kim, Heung-Sik
Using first-principles techniques, we study the structural, magnetic and electronic properties of (111)-oriented (LaMnO$_3$)$_{2n}$$\vert$(SrMnO$_3$)$_{n}$ superlattices of varying thickness ($n=2,4,6$). We find that the properties of the thinnest su
Externí odkaz:
http://arxiv.org/abs/2311.01081
Publikováno v:
Phys. Rev. Research 6, 013231 (2024)
We present a molecular orbital candidate Ba$_{4}$TaMn$_{3}$O$_{12}$ with a face-sharing octahedra trimer, by comparing it with a related compound Ba$_{4}$NbMn$_{3}$O$_{12}$. The synthesis of the polycrystalline powder is optimized by suppressing the
Externí odkaz:
http://arxiv.org/abs/2304.14640
Autor:
Samanta, Subhasis, Park, Hwiwoo, Lee, Chanhyeon, Jeon, Sungmin, Cui, Hengbo, Yao, Yong-Xin, Hwang, Jungseek, Choi, Kwang-Yong, Kim, Heung-Sik
Publikováno v:
Nat. Commun. 15, 5376 (2024)
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 band close
Externí odkaz:
http://arxiv.org/abs/2304.04928
Publikováno v:
Current Applied Physics 50, 53-60 (2023)
By employing first-principles electronic structure calculations we investigate nickelate superlattices [LaNiO$_3$]$_1$/[LaAlO$_3$]$_1$ and [LaNiO$_3$]$_1$/[SrTiO$_3$]$_1$ with (001) orientation under epitaxial tensile strain. Within density functiona
Externí odkaz:
http://arxiv.org/abs/2302.02424
Publikováno v:
npj 2D Materials and Applications 7, 13 (2023)
We report Chern insulating phases emerging from a single layer of layered chalcogenide CrSiTe$_{3}$, a transition metal trichacogenides (TMTC) material, in the presence of charge doping. Due to strong hybridization with Te $p$ orbitals, the spin-orbi
Externí odkaz:
http://arxiv.org/abs/2208.02997
Autor:
Wulferding, Dirk, Kim, Junkyeong, Kim, Mi Kyung, Yang, Yang, Lee, Jae Hyuck, Song, Dongjoon, Oh, Dongjin, Kim, Heung-Sik, Chern, Li Ern, Kim, Yong Baek, Noh, Minji, Choi, Hyunyong, Choi, Sungkyun, Perkins, Natalia B., Kim, Changyoung, Park, Seung Ryong
Publikováno v:
npj Quantum Materials 8, 40 (2023)
The emergence of scalar Higgs-type amplitude modes in systems where symmetry is spontaneously broken has been a highly successful, paradigmatic description of phase transitions, with implications ranging from high-energy particle physics to low-energ
Externí odkaz:
http://arxiv.org/abs/2204.12124
Candidate materials for Kitaev spin liquid phase have been intensively studied recently because of their potential applications in fault-tolerant quantum computing. Although most of the studies on Kitaev spin liquid have been done in 4$d$ and 5$d$ ba
Externí odkaz:
http://arxiv.org/abs/2204.11465
Autor:
Kim, Heung-Sik
Publikováno v:
Appl. Sci. Converg. Technol. 2021; 30(6): 191-194
$\alpha$-RuCl$_3$ has been extensively studied recently because of potential bond-dependent Kitaev magnetic exchange interactions and the resulting quantum spin liquid phase that can be realized therein. It has been known that the covalency between R
Externí odkaz:
http://arxiv.org/abs/2111.12291