Zobrazeno 1 - 10
of 396
pro vyhledávání: '"Son, Young‐Woo"'
A DFT+$U$+$V$ study of pristine and oxygen-deficient HfO$_2$ with self-consistent Hubbard parameters
HfO$_2$-based ferroelectrics have emerged as promising materials for advanced nanoelectronics, with their robust polarization and silicon compatibility making them ideal for high-density, non-volatile memory applications. Oxygen vacancies, particular
Externí odkaz:
http://arxiv.org/abs/2409.01795
We present experimental measurements on Young's modulus and Gr\"{u}neisen parameter of multilayer graphene with varying number of layers using in situ bulge tests corroborated by atomic force microscopy and Raman spectroscopy. Due to the experimental
Externí odkaz:
http://arxiv.org/abs/2406.16344
Autor:
Yang, Wooil, Son, Young-Woo
Publikováno v:
Phys. Rev. B 110, 155133 (2024)
A first-principles computational method with self-consistent on-site and inter-site Hubbard functionals is able to treat local and non-local Coulomb interactions on an equal footing. To apply the method to understand solids with strong spin-orbit cou
Externí odkaz:
http://arxiv.org/abs/2406.12099
Rhombohedral multilayer graphene (RnG) featuring partially flat bands has emerged as an important platform to probe strong Coulomb correlation effects. Theoretical consideration of local electron-electron interactions are of particular importance for
Externí odkaz:
http://arxiv.org/abs/2403.00530
Autor:
Park, Daesung, Park, Changwon, Ko, Eunjung, Yananose, Kunihiro, Engelke, Rebecca, Zhang, Xi, Davydov, Konstantin, Green, Matthew, Park, Sang Hwa, Lee, Jae Heon, Watanabe, Kenji, Taniguchi, Takashi, Yang, Sang Mo, Wang, Ke, Kim, Philip, Son, Young-Woo, Yoo, Hyobin
Imposing incommensurable periodicity on the periodic atomic lattice can lead to complex structural phases consisting of locally periodic structure bounded by topological defects. Twisted trilayer graphene (TTG) is an ideal material platform to study
Externí odkaz:
http://arxiv.org/abs/2402.15760
Autor:
Kim, Junghyun, Na, Woongki, Kim, Jonghyeon, Park, Pyeongjae, Zhang, Kaixuan, Hwang, Inho, Son, Young-Woo, Kim, Jae Hoon, Cheong, Hyeonsik, Park, Je-Geun
The unique discovery of magnetic exciton in van der Waals antiferromagnet NiPS3 arises between two quantum many-body states of a Zhang-Rice singlet excited state and a Zhang-Rice triplet ground state. Simultaneously, the spectral width of photolumine
Externí odkaz:
http://arxiv.org/abs/2310.19348
Autor:
Kim, Rokyeon, Son, Young-Woo
Publikováno v:
Physical Review B 109, 045153 (2024)
Machine learning is used to generate empirical pseudopotentials that characterize the local screened interactions in the Kohn-Sham Hamiltonian. Our approach incorporates momentum-range-separated rotation-covariant descriptors to capture crystal symme
Externí odkaz:
http://arxiv.org/abs/2306.04426
Autor:
Park, Changwon, Son, Young-Woo
Publikováno v:
Nature Communications 14, 7309 (2023)
Charge density wave (CDW) is a spontaneous spatial modulation of electric charges in solids whose general microscopic descriptions are yet to be completed. Layered kagome metals of $A$V$_3$Sb$_5$ ($A$ = K, Rb, Cs) provide a unique chance to realize i
Externí odkaz:
http://arxiv.org/abs/2303.08598
Autor:
Tian, Ning, Huang, Zhe, Jang, Bo Gyu, Guo, Shuaifei, Yan, Ya-Jun, Gao, Jingjing, Yu, Yijun, Hwang, Jinwoong, Wang, Meixiao, Luo, Xuan, Sun, Yu Ping, Liu, Zhongkai, Feng, Dong-Lai, Chen, Xianhui, Mo, Sung-Kwan, Kim, Minjae, Son, Young-Woo, Shen, Dawei, Ruan, Wei, Zhang, Yuanbo
When electron-electron interaction dominates over other electronic energy scales, exotic, collective phenomena often emerge out of seemingly ordinary matter. The strongly correlated phenomena, such as quantum spin liquid and unconventional supercondu
Externí odkaz:
http://arxiv.org/abs/2211.08114
Publikováno v:
Phys. Rev. Lett. 130, 136401 (2023)
Using {\it ab initio} approaches for extended Hubbard interactions coupled to phonons, we reveal that the intersite Coulomb interaction plays important roles in determining various distinctive phases of the paradigmatic charge ordered materials of Ba
Externí odkaz:
http://arxiv.org/abs/2205.02470