Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Hoi Chun Po"'
Autor:
Wei Zhang, C. N. Kuo, S. T. Kuo, Chun Wa So, Jianyu Xie, Kwing To Lai, Wing Chi Yu, C. S. Lue, Hoi Chun Po, Swee K. Goh
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-7 (2023)
Abstract The Lifshitz–Kosevich (LK) theory is the pillar of magnetic quantum oscillations, which have been extensively applied to characterise a wide range of metallic states. In this study, we focus on the Shubnikov–de Haas (SdH) effect observed
Externí odkaz:
https://doaj.org/article/bcc03e5541b34e4c993b0a66291c2f90
Autor:
Caiyun Chen, Jiangchang Zheng, Ruopeng Yu, Soumya Sankar, Kam Tuen Law, Hoi Chun Po, Berthold Jäck
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043269 (2023)
Destructive interference between electron wavefunctions on the two-dimensional kagome lattice induces an electronic flat band, which could host a variety of interesting quantum states. Key to realize these proposals is to demonstrate the real-space l
Externí odkaz:
https://doaj.org/article/67ae79048e044da783e03f558e1aafec
Autor:
Emre Ergeçen, Batyr Ilyas, Dan Mao, Hoi Chun Po, Mehmet Burak Yilmaz, Junghyun Kim, Je-Geun Park, T. Senthil, Nuh Gedik
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Van der Waals materials can exhibit strong coupling between the lattice and other degrees of freedom. Here, Ergeçen et al reveal the presence of bound states emerging from the strong interaction between the lattice vibrations and d-orbitals in the v
Externí odkaz:
https://doaj.org/article/9b957f539660419490b864fd6e511f23
Autor:
Carina A. Belvin, Edoardo Baldini, Ilkem Ozge Ozel, Dan Mao, Hoi Chun Po, Clifford J. Allington, Suhan Son, Beom Hyun Kim, Jonghyeon Kim, Inho Hwang, Jae Hoon Kim, Je-Geun Park, T. Senthil, Nuh Gedik
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Previous work has shown the existence of spin-orbit-entangled excitons and their coupling to antiferromagnetism in the correlated insulator NiPS3. Here the authors show that non-equilibrium driving of these excitons produces a transient metallic anti
Externí odkaz:
https://doaj.org/article/eb77d2588f7a4c1eab4eb9b0a763a10c
Autor:
Mingu Kang, Shiang Fang, Linda Ye, Hoi Chun Po, Jonathan Denlinger, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Efthimios Kaxiras, Joseph G. Checkelsky, Riccardo Comin
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
The experimental realization of lattice-born flat bands with nontrivial topology has been elusive. Here, the authors observe topological flat bands near the Fermi level in a kagome metal CoSn, with flat bands as well as Dirac bands originating from 3
Externí odkaz:
https://doaj.org/article/8c1087e5adec48329af366b6504f0af2
Publikováno v:
Physical Review X, Vol 12, Iss 2, p 021066 (2022)
The fundamental, or first, band gap is of unmatched importance in the study of photonic crystals. Here, we address precisely where this gap can be opened in the band structure of three-dimensional photonic crystals. Although strongly constrained by s
Externí odkaz:
https://doaj.org/article/0835c5a79249432dba8ae0d030645932
Autor:
Haruki Watanabe, Hoi Chun Po
Publikováno v:
Physical Review X, Vol 11, Iss 4, p 041064 (2021)
Recent developments in higherorder topological phases have revealed the relationship between nontrivial multipole moments in the bulk and the emergence of fractionally quantized charges at the boundary. Here, we put forth a proposal of the three-dime
Externí odkaz:
https://doaj.org/article/65232d81e44a4d09a8b44f92aae72a18
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Understanding the role of topology in determining electronic structure can lead to the discovery, or appreciation, of materials with exotic properties such as protected surface states. Here, the authors present a framework for identifying topological
Externí odkaz:
https://doaj.org/article/e249f29fcef347d689b25a0b580f1c17
Z_{2}-enriched symmetry indicators for topological superconductors in the 1651 magnetic space groups
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023086 (2021)
While the symmetry-based diagnosis of topological insulators and semimetals has enabled large-scale discovery of topological materials candidates, the extension of these approaches to the diagnosis of topological superconductors remains a major open
Externí odkaz:
https://doaj.org/article/246a99b276674e14a814af26cb56ddc9
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033072 (2019)
Twisted bilayer graphene (TBLG) has emerged as an important platform for studying correlated phenomena, including unconventional superconductivity, in two-dimensional systems. The complexity of the atomic-scale structures in TBLG has made even the st
Externí odkaz:
https://doaj.org/article/773914e9ec034a29864ce3a754e67ff7