Results 131 to 140 of about 128,254 (319)

Evidence for Topological Edge States in a Large Energy Gap near the Step Edges on the Surface of ZrTe_{5}

Physical Review X, 2016
Two-dimensional topological insulators with a large bulk band gap are promising for experimental studies of quantum spin Hall effect and for spintronic device applications.
R. Wu, J.-Z. Ma, S.-M. Nie, L.-X. Zhao, X. Huang, J.-X. Yin, B.-B. Fu, P. Richard, G.-F. Chen, Z. Fang, X. Dai, H.-M. Weng, T. Qian, H. Ding, S. H. Pan   +14 more
doaj   +1 more source

Quantum Spin Hall Effect in Silicene

, 2011
Recent years have witnessed great interest in the quantum spin Hall effect (QSHE) which is a new quantum state of matter with nontrivial topological property due to the scientific importance as a novel quantum state and the technological applications in spintronics.
Liu, Cheng-Cheng, Feng, Wanxiang, Yao, Yugui   +2 more
openaire   +2 more sources

Electron Channeling Contrast Imaging of Ferroelastic Domains

Advanced Materials, EarlyView.
A simple scanning electron microscopy technique, electron channeling contrast imaging, unveils nanoscale ferroelastic domains and their coupling to functional properties in oxide heterostructures. The work demonstrates high‐resolution mapping of both surface and buried domains, broadening the experimental toolbox for ferroic and quantum oxide systems ...
Wei Peng, Aditya Singh, M. Haroon Qaiser, Philipp Fahler‐Muenzer, Freya Watson, Liang Si, Yining Xie, Katarzyna E. Sopińska, Daniel A. Chaney, Ana M. Sanchez, T. Ben Britton, Richard Beanland, Marios Hadjimichael, Marin Alexe   +13 more
wiley   +1 more source

Quantum spin Hall effect in monolayer and bilayer TaIrTe4 [PDF]

, 2020
Peng‐Jie Guo, Xiao-Qin Lu, Wei Ji, Kai Liu, Zhong-Yi Lu   +4 more
openalex   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Quantum metric third-order nonlinear Hall effect in a non-centrosymmetric ferromagnet

Nature Communications
Berry curvature in the imaginary part of quantum geometry has been confirmed to play a role in the nonlinear Hall effect of Weyl semimetals. However, exploration of the influence of the real component of the quantum geometry, the quantum metrics, on ...
Hao Yu, Xinjie Li, Ya-Qing Bie, Luo Yan, Liujiang Zhou, Peng Yu, Guowei Yang   +6 more
doaj   +1 more source

The Design of a Circulator Based on Topological Photonic Crystals

Photonics
Topological photonic crystals have garnered significant attention due to their fascinating topological edge states. These states are robust against sharp bends and defects and exhibit the novel property of unidirectional transmission.
Yulin Zhao, Feng Liang, Jianfei Han, Jingsen Li, Haihua Hu, Weihao Zhang, Xiangjun Tan   +6 more
doaj   +1 more source

Quantum Spin Hall Effect in Inverted Type-II Semiconductors [PDF]

, 2008
Chao‐Xing Liu, Taylor L. Hughes, Xiao-Liang Qi, Kang Wang, Shou-Cheng Zhang   +4 more
openalex   +1 more source

Quantum Spin-Hall Effect in a Quantum Wire [PDF]

Journal of the Physical Society of Japan, 2010
In this paper, we show that spatially displaced helical states that transport electrons with opposite spins in opposite directions are formed in a harmonic quantum wire due to the spin–orbit (SO) coupling induced by lateral confinement. These states give rise to a transverse spin imbalance in response to the longitudinal charge current as well as a ...
openaire   +1 more source

Field‐Free, Deterministic Giant Spin‐Orbit Torque Switching of 1.3 T Perpendicular Magnetization With Symmetry‐Lifted Topological Surface States

Advanced Materials, EarlyView.
We show a giant, bias‐field free, deterministic, spin‐orbit‐torque switching of perpendicular hard magnets with HC over 1.3 T. By combining the three‐fold 3m symmetry from topological insulator surface states with the rectangular mm2 symmetry from the 2 x 1 intercalation in Cr3Te4, the interface symmetry is significantly reduced into a unidirectional m
He Ren, Yawen Peng, Meixin Cheng, Yu Shi, Reza Asadi, Adam W. Tsen, Guo‐Xing Miao   +6 more
wiley   +1 more source