Zobrazeno 1 - 10
of 2 711
pro vyhledávání: '"Choi, Hyoung"'
Autor:
Han, Mancheon, Choi, Hyoung Joon
Publikováno v:
Physical Review B 106, 245150 (2022)
We develop a reliable parameter-free analytic continuation method for quantum many-body calculations. Our method is based on a kernel grid, a causal spline, a regularization using the second-derivative roughness penalty, and the L-curve criterion. We
Externí odkaz:
http://arxiv.org/abs/2301.00129
Publikováno v:
In Finite Elements in Analysis & Design December 2024 242
Publikováno v:
In Annals of Nuclear Energy November 2024 207
Autor:
Kim, Han-gyu, Choi, Hyoung Joon
Publikováno v:
Journal of Materials Chemistry C 9, 9683 (2021)
Group-IV monochalcogenides have attracted much attention due to their potential of ferroelectric and multiferroic properties. Recently, centrosymmetric gamma-phase GeSe in a double-layer honeycomb lattice has been theoretically predicted, but the syn
Externí odkaz:
http://arxiv.org/abs/2109.03226
Autor:
Han, Mancheon, Choi, Hyoung Joon
Publikováno v:
Physical Review B 104, 115112 (2021)
We develop a causal optimization method that ensures causality in numerical calculations of Green's functions in interacting electron systems. Our method removes noncausality of numerical data by finding causal functions closest to the data. By testi
Externí odkaz:
http://arxiv.org/abs/2109.01593
Autor:
Choi, Young Woo, Choi, Hyoung Joon
Publikováno v:
2D Materials 8, 035024 (2021)
We investigate the role of pseudospin structure of few-layer black phosphorus (BP) in interband tunneling properties in lateral BP junctions. We find that interband tunneling is critically dependent on junction directions because of the anisotropic p
Externí odkaz:
http://arxiv.org/abs/2109.00897
Autor:
Kim, Han-gyu, Choi, Hyoung Joon
Publikováno v:
Physical Review B 103, 165419 (2021)
We performed first-principles density functional theory (DFT) and GW calculations to investigate electronic structures of bulk and few-layer PdSe2. We obtained the quasiparticle band structure of bulk PdSe2, and the obtained energy gap agrees excelle
Externí odkaz:
http://arxiv.org/abs/2109.00366
Autor:
Lee, Sol, Jung, Joong-Eon, Kim, Han-gyu, Lee, Yangjin, Park, Je Myoung, Jang, Jeongsu, Yoon, Sangho, Ghosh, Arnab, Kim, Minseol, Kim, Joonho, Na, Woongki, Kim, Jonghwan, Choi, Hyoung Joon, Cheong, Hyeonsik, Kim, Kwanpyo
Publikováno v:
Nano Letters, 2021
The family of group IV-VI monochalcogenides has an atomically puckered layered structure, and their atomic bond configuration suggests the possibility for the realization of various polymorphs. Here, we report the synthesis of the first hexagonal pol
Externí odkaz:
http://arxiv.org/abs/2105.04938