Zobrazeno 1 - 10
of 437
pro vyhledávání: '"Yu, Zhi Ming"'
According to the theory of group representations, the types of band degeneracy can be divided into accidental degeneracy and essential degeneracy. The essentially degenerate nodal lines (NLs) are typically resided on the high-symmetry lines of the Br
Externí odkaz:
http://arxiv.org/abs/2501.00706
The pursuit for "ferroelectric metal" which combines seemingly incompatible spontaneous electric polarization and metallicity, has been assiduously ongoing but remains elusive. Unlike traditional ferroelectrics with a wide band gap, ferroelectric (FE
Externí odkaz:
http://arxiv.org/abs/2408.01982
Spacetime inversion symmetry can generate intriguing types of spinless excitations in crystalline materials. Here, we propose a topological phase protected by spacetime inversion symmetry - the crossed real nodal line (RNL) in the phonon spectrum of
Externí odkaz:
http://arxiv.org/abs/2407.09079
Publikováno v:
Science Bulletin 2025; 70(2)
Despite the rapid progress in the study of planar Hall effect (PHE) in recent years, all the previous works only showed that the PHE is connected to local geometric quantities, such as Berry curvature. Here, for the first time, we point out that the
Externí odkaz:
http://arxiv.org/abs/2406.11273
Exploring new Hall effect is always a fascinating research topic. The ordinary Hall effect and the quantum Hall effect, initially discovered in two-dimensional (2D) non-magnetic systems, are the phenomena that a transverse current is generated when a
Externí odkaz:
http://arxiv.org/abs/2405.15410
Autor:
Wang, Xiaotian, Bai, Jingbo, Wang, Jianhua, Cheng, Zhenxiang, Qian, Shifeng, Wang, Wenhong, Zhang, Gang, Yu, Zhi-Ming, Yao, Yugui
There has been a significant focus on real topological systems that enjoy space-time inversion symmetry (PT ) and lack spin-orbit coupling. While the theoretical classification of the real topology has been established, more progress has yet to be ma
Externí odkaz:
http://arxiv.org/abs/2405.12072
Andreev reflection at a normal-superconductor interface may be accompanied with an anomalous spatial shift. The studies so far are limited to the top incidence configuration. Here, we investigate this effect in the side incidence configuration, with
Externí odkaz:
http://arxiv.org/abs/2403.17560
Autor:
Wang, Yang, Cui, Chaoxi, Zhang, Run-Wu, Wang, Xiaotian, Yu, Zhi-Ming, Liu, Gui-Bin, Yao, Yugui
A real Chern insulator (RCI) featuring a real Chern number and a second-order boundary mode appears in a two-dimensional (2D) system with the space-time inversion symmetry (PT ). Here, we propose a kind of RCI: mirror real Chern insulator (MRCI) whic
Externí odkaz:
http://arxiv.org/abs/2403.01145
Publikováno v:
Phys. Rev. Lett. 133, 146602 (2024)
In three dimensions, quasi-one-dimensional (Q1D) transport has traditionally been associated with systems featuring a Q1D chain structure. Here, based on first-principle calculations, we go beyond this understanding to show that the Q1D transport can
Externí odkaz:
http://arxiv.org/abs/2403.00371
Autor:
Han, Ning, Chen, Fujia, Li, Mingzhu, Zhao, Rui, Li, Wenhao, Chen, Qiaolu, Zhang, Li, Pan, Yuang, Ma, Jingwen, Yu, Zhi-Ming, Chen, Hongsheng, Yang, Yihao
In topological physics, it is commonly understood that the existence of the boundary states of a topological system is inherently dictated by its bulk. A classic example is that the surface Fermi arc states of a Weyl system are determined by the chir
Externí odkaz:
http://arxiv.org/abs/2401.11780