Results 41 to 50 of about 551,694 (368)

Topological Kondo Insulators [PDF]

Physical Review Letters, 2010
Kondo insulators are particularly simple type of heavy electron material, where a filled band of heavy quasiparticles gives rise to a narrow band insulator. Starting with the Anderson lattice Hamiltonian, we develop a topological classification of emergent band structures for Kondo insulators and show that these materials may host three-dimensional ...
Dzero, Maxim, Sun, Kai, Galitski, Victor, Coleman, Piers   +3 more
openaire   +9 more sources

Topological Mott Insulators [PDF]

Physical Review Letters, 2008
5 Pages, 4 ...
Raghu, S., Qi, Xiao-Liang, Honerkamp, C., Zhang, Shou-Cheng   +3 more
openaire   +3 more sources

Axion insulator state in hundred-nanometer-thick magnetic topological insulator sandwich heterostructures

Nature Communications, 2023
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.
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   +12 more
doaj   +1 more source

Gapless Surface Dirac Cone in Antiferromagnetic Topological Insulator MnBi2Te4 [PDF]

Physical Review X, 2019
The recent discovered antiferromagnetic topological insulators in Mn-Bi-Te family with intrinsic magnetic ordering have rapidly drawn broad interest since its cleaved surface state is believed to be gapped, hosting the unprecedented axion states with ...
Yu-Jie Hao, Pengfei Liu, Yue Feng, Xiao-Ming Ma, E. Schwier, M. Arita, Shiv Kumar, Chaowei Hu, R. Lu, M. Zeng, Yuanyuan Wang, Z. Hao, Hongyi Sun, Keto Zhang, J. Mei, N. Ni, Liusuo Wu, K. Shimada, Chaoyu Chen, Qihang Liu, Chang Liu   +20 more
semanticscholar   +1 more source

Fractionalized topological insulators [PDF]

Nature Physics, 2015
5 pages, 3 figures.
Maciejko, Joseph, Fiete, Gregory A.
openaire   +2 more sources

Bi1Te1 is a dual topological insulator

Nature Communications, 2017
Coexistence of a topological insulator phase and a topological crystalline insulator phase helps to maintain topological properties under a controlled symmetry breaking perturbation. Here, Eschbacket al. report a superlattice of Bi and Bi2Te3to be such a
Markus Eschbach, Martin Lanius, Chengwang Niu, Ewa Młyńczak, Pika Gospodarič, Jens Kellner, Peter Schüffelgen, Mathias Gehlmann, Sven Döring, Elmar Neumann, Martina Luysberg, Gregor Mussler, Lukasz Plucinski, Markus Morgenstern, Detlev Grützmacher, Gustav Bihlmayer, Stefan Blügel, Claus M. Schneider   +17 more
doaj   +1 more source

Bimorphic Floquet topological insulators

Nature Materials, 2022
Topological theories have established a new set of rules that govern the transport properties in a wide variety of wave-mechanical settings. In a marked departure from the established approaches that induce Floquet topological phases by specifically tailored discrete coupling protocols or helical lattice motions, we introduce a new class of bimorphic ...
Georgios G. Pyrialakos, Julius Beck, Matthias Heinrich, Lukas J. Maczewsky, Nikolaos V. Kantartzis, Mercedeh Khajavikhan, Alexander Szameit, Demetrios N. Christodoulides   +7 more
openaire   +3 more sources

Topological Electronic Structure and Its Temperature Evolution in Antiferromagnetic Topological Insulator MnBi2Te4 [PDF]

Physical Review X, 2019
The intrinsic magnetic topological insulator MnBi2Te4 exhibits rich topological effects such as quantum anomalous Hall effect and axion electrodynamics.
Yujie Chen, Lixuan Xu, Lixuan Xu, Jiaheng Li, Yiwei Li, Hongyuan Wang, Hongyuan Wang, Chaofan Zhang, Hao Li, Yang Wu, A. Liang, A. Liang, Cheng Chen, Cheng Chen, S. Jung, C. Cacho, Y. Mao, Shuai Liu, Meixiao Wang, Yanfeng Guo, Yong Xu, Yong Xu, Zhongkai Liu, Lexian Yang, Yulin Chen, Yulin Chen, Yulin Chen   +26 more
semanticscholar   +1 more source

Topological Insulators by Topology Optimization [PDF]

Physical Review Letters, 2019
An acoustic topological insulator (TI) is synthesized using topology optimization, a free material inverse design method. The TI appears spontaneously from the optimization process without imposing requirements on the existence of pseudo spin-1/2 states at the TI interface edge, or the Chern number of the topological phases. The resulting TI is passive;
Christiansen, Rasmus E., Wang, Fengwen, Sigmund, Ole   +2 more
openaire   +4 more sources

Topological Hierarchy Insulators and Topological Fractal Insulators [PDF]

EPL (Europhysics Letters), 2015
Topological insulators are new states of quantum matter with metallic edge/surface states. In this paper, we pointed out that there exists a new type of particle-hole symmetry-protected topological insulator - topological hierarchy insulator (THI), a composite topological state of a (parent) topological insulator and its defect-induced topological mid ...
He, Jing, Zang, Chun-Li, Liang, Ying, Kou, Su-Peng   +3 more
openaire   +3 more sources