Zobrazeno 1 - 10
of 433
pro vyhledávání: '"Wu Weikang"'
Autor:
Su, Bo, Wu, Weikang, Zhao, Jianzhou, Deng, Xiutong, Li, Wenhui, Yang, Shengyuan A., Shi, Youguo, Li, Qiang, Luo, Jianlin, Gu, Genda, Chen, Zhi-Guo
Publikováno v:
Laser & Photonics Reviews, 2400599 (2024)
Weyl semimetal (WSM) states can be achieved by breaking spatial-inversion symmetry or time reversal symmetry. However, the anisotropy of the energy reduction contributing to the emergence of WSM states has seldom been investigated by experiments. A v
Externí odkaz:
http://arxiv.org/abs/2410.12291
Autor:
Wang, Hui, Liu, Huiying, Feng, Xukun, Cao, Jin, Wu, Weikang, Lai, Shen, Gao, Weibo, Xiao, Cong, Yang, Shengyuan A.
We propose an intrinsic nonlinear spin Hall effect, which enables the generation of collinearly-polarized spin current in a large class of nonmagnetic materials with the corresponding linear response being symmetry-forbidden. This opens a new avenue
Externí odkaz:
http://arxiv.org/abs/2407.17867
Autor:
Feng, Xukun, Wu, Weikang, Wang, Hui, Gao, Weibo, Ang, Lay Kee, Zhao, Y. X., Xiao, Cong, Yang, Shengyuan A.
Effects manifesting quantum geometry have been a focus of physics research. Here, we reveal that quantum metric plays a crucial role in nonlinear electric spin response, leading to a quantum metric spin-orbit torque. We argue that enhanced quantum me
Externí odkaz:
http://arxiv.org/abs/2402.00532
Quadratic nodal point (QNP) in two dimensions has so far been reported only in nonmagnetic materials and in the absence of spin-orbit coupling. Here, by first-principles calculations and symmetry analysis, we predict stable QNP near Fermi level in a
Externí odkaz:
http://arxiv.org/abs/2310.11810
Realizing topological semimetal states with novel emergent fermions in magnetic materials is a focus of current research. Based on first-principle calculations and symmetry analysis, we reveal interesting magnetic emergent fermions in an existing mat
Externí odkaz:
http://arxiv.org/abs/2310.11669
Publikováno v:
Carbon, 223, 118971 (2024)
Exploring various topological states (TS) and topological phase transitions (TPT) has attracted great attention in condensed matter physics. However, so far, there is rarely a typical material system that can be used as a platform to study the TS and
Externí odkaz:
http://arxiv.org/abs/2310.05233
Publikováno v:
Nano Letters 2023 23 (23), 11266-11271
As an ideal platform, both the theoretical prediction and first experimental verification of chiral phonons are based on transition-metal dichalcogenide materials. The manipulation of phonon chirality in these materials will have a profound impact on
Externí odkaz:
http://arxiv.org/abs/2309.13260
Publikováno v:
Appl. Phys. Lett. 124, 092201 (2024)
Chiral phonons have attracted increasing attention, as they play important roles in many different systems and processes. However, a method to control phonon chirality by external fields is still lacking. Here, we propose that in displacement-type fe
Externí odkaz:
http://arxiv.org/abs/2307.15927
Recently, Wang et al. [Phys. Rev. B, 106, 195129 (2022)] challenged a widely held belief in the field of Weyl physics, demonstrating that single-pair-Weyl-points (SP-WPs) can exist in nonmagnetic spinless systems, contrary to previous assumptions tha
Externí odkaz:
http://arxiv.org/abs/2304.04608
Autor:
Zhang, Xiaoming, He, Tingli, Liu, Ying, Dai, Xuefang, Liu, Guodong, Chen, Cong, Wu, Weikang, Zhu, Jiaojiao, Yang, Shengyuan A.
Real Chern insulators have attracted great interest, but so far, their material realization is limited to nonmagnetic crystals and to systems without spin-orbit coupling. Here, we reveal magnetic real Chern insulator (MRCI) state in a recently synthe
Externí odkaz:
http://arxiv.org/abs/2303.09218