Zobrazeno 1 - 10
of 62
pro vyhledávání: '"K. T. Law"'
Autor:
Xiu Fang Lu, Cheng-Ping Zhang, Naizhou Wang, Dan Zhao, Xin Zhou, Weibo Gao, Xian Hui Chen, K. T. Law, Kian Ping Loh
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Materials showing second-order nonlinear transport under time reversal symmetry can be used for Radio Frequency (RF) rectification, but practical application demands room temperature operation and sensitivity to microwatts level RF signals i
Externí odkaz:
https://doaj.org/article/1a2e237a0656479e8d8b9552adc1b062
Autor:
Deyi Zhuo, Zi-Jie Yan, Zi-Ting Sun, Ling-Jie Zhou, Yi-Fan Zhao, Ruoxi Zhang, Ruobing Mei, Hemian Yi, Ke Wang, Moses H. W. Chan, Chao-Xing Liu, K. T. Law, Cui-Zu Chang
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
Abstract An axion insulator is a three-dimensional (3D) topological insulator (TI), in which the bulk maintains the time-reversal symmetry or inversion symmetry but the surface states are gapped by surface magnetization. The axion insulator state has
Externí odkaz:
https://doaj.org/article/212cce7cd2be4e37a6ebd79d22da0c37
Autor:
J. Díez-Mérida, A. Díez-Carlón, S. Y. Yang, Y.-M. Xie, X.-J. Gao, J. Senior, K. Watanabe, T. Taniguchi, X. Lu, A. P. Higginbotham, K. T. Law, Dmitri K. Efetov
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
Abstract The coexistence of gate-tunable superconducting, magnetic and topological orders in magic-angle twisted bilayer graphene provides opportunities for the creation of hybrid Josephson junctions. Here we report the fabrication of gate-defined sy
Externí odkaz:
https://doaj.org/article/d4b23b23d1b647deaeeb3f2f3d536b86
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-6 (2022)
The nonlinear Hall effect describes a recently discovered phenomenon in which a time-reversal symmetric material with a Berry curvature dipole develops a transverse voltage at double the frequency of an applied current. Here, the authors theoreticall
Externí odkaz:
https://doaj.org/article/f131574355fa47b281c60fb12cd36cec
Publikováno v:
Quantum Frontiers, Vol 1, Iss 1, Pp 1-6 (2022)
Abstract Recently, multifold fermions characterized by band crossings with multifold degeneracy and Fermi surfaces with higher Chern numbers have been discovered experimentally in AlPt (Schroter et al. in Nat Phys 15:759–765, 2019) and XSi(X = Rh,C
Externí odkaz:
https://doaj.org/article/c219d1634f3a4aa39c66a0ccd0409375
Publikováno v:
Quantum Frontiers, Vol 2, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/eadcb5f76e8747dcb40e13793534738d
Autor:
Ying-Ming Xie, Xue-Jian Gao, Xiao Yan Xu, Cheng-Ping Zhang, Jin-Xin Hu, Jason Z. Gao, K. T. Law
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Chiral crystals with spin-orbit coupling (SOC) termed Kramers Weyl semimetals possess Weyl points at time-reversal invariant momenta. Here, the authors propose a new class of topological materials with doubly degenerate lines connecting time-reversal
Externí odkaz:
https://doaj.org/article/32001cb654fc4a84b28dd42734ff10d8
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-8 (2021)
A Kramers Weyl semimetal has a chiral crystal structure and is thought to exhibit unique physical properties due to the chiral lattice symmetry. Here, the authors theoretically demonstrate that this class of material can exhibit a strong longitudinal
Externí odkaz:
https://doaj.org/article/ef39c5633b8846f7b7e7882417f9224b
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p 023029 (2023)
Recently, gate-defined Josephson junctions in magic angle twisted bilayer graphene (MATBG) were studied experimentally, and highly unconventional Fraunhofer patterns were observed. In this work, we show that an interaction-driven valley-polarized sta
Externí odkaz:
https://doaj.org/article/92a6b115ba2a42d8916af7797880aefe
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
The mechanism of current-driven magnetization switching in twisted bilayer graphene (TBG) is poorly understood. Here, He et al. show that a small current can generate a large orbital magnetization due to symmetry breaking by the twisting and substrat
Externí odkaz:
https://doaj.org/article/02cebc793d484c9889a909e647407dd3