Results 111 to 120 of about 551,694 (368)

Topological insulators

10 pages, 2 figures; a chapter for Encyclopedia of Condensed Matter Physics (Elsevier, 2nd Edition)
  +5 more sources

Topology-optimized phoxonic crystals with simultaneous acoustic and photonic helical edge states

Physical Review Research
Sonic and photonic topological insulators that host topological edge states offer promising potentials for the resilient control of acoustic and electromagnetic waves, respectively.
Yafeng Chen, Shuowei An, Zhihao Lan, Liang An, Zhongqing Su   +4 more
doaj   +1 more source

Multi-class, multi-functional design of photonic topological insulators by rational symmetry-indicators engineering

Nanophotonics, 2021
An explicit topology optimization-based design paradigm is proposed for the design of photonic topological crystalline insulators (TCIs). To strictly guarantee the topological property, rational engineering of symmetry-indicators is carried out by ...
Luo Jiachen, Du Zongliang, Guo Yilin, Liu Chang, Zhang Weisheng, Guo Xu   +5 more
doaj   +1 more source

Topological Crystalline Insulators

Physical Review Letters, 2011
published version, added an appendix on the stability of surface ...
openaire   +4 more sources

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

Quantum Spin Hall Effect in Two-Monolayer-Thick InN/InGaN Coupled Multiple Quantum Wells

Nanomaterials, 2023
In this study, we present a theoretical study of the quantum spin Hall effect in InN/InGaN coupled multiple quantum wells with the individual well widths equal to two atomic monolayers.
Sławomir P. Łepkowski
doaj   +1 more source

Koopmans' theorem as the mechanism of nearly gapless surface states in self-doped magnetic topological insulators [PDF]

, 2021
Weizhao Chen, Yufei Zhao, Qiushi Yao, Jing Zhang, Qihang Liu   +4 more
openalex   +1 more source

Nonreciprocal charge transport at topological insulator/superconductor interface

Nature Communications, 2019
Topological superconductor is attracting growing interest for its potential application to topological quantum computation. The superconducting proximity effect on the topological insulator surface state is one promising way to yield topological ...
K. Yasuda, H. Yasuda, T. Liang, R. Yoshimi, A. Tsukazaki, Kei S. Takahashi, N. Nagaosa, M. Kawasaki, Y. Tokura   +8 more
semanticscholar   +1 more source

Topological insulators [PDF]

MRS Bulletin, 2014
Abstract
Felser, C., Qi, X.
openaire   +2 more sources

Synthesis and Electronic Structure of the Fractionally Occupied Double Perovskite EuTa2O6 with Ordered Europium Vacancies

Advanced Functional Materials, EarlyView.
Two‐dimensional electronic states are the foundation of modern semiconductor technology. Here, we report molecular‐beam epitaxy growth of fractional double perovskite, EuTa2O6. Reciprocal space mapping and transmission electron microscopy confirm a layered ordering of A‐site cations.
Tobias Schwaigert, Ali Barooni, Benjamin Gregory, Paul Malinowski, Anirudh Tenneti, Sonia Hasko, Brenan Palazzolo, Jeffrey W Hodgson, Brendan Faeth, Patrick M. Woodward, Kyle M. Shen, Andrej Singer, Maryam Ghazisaeidi, Salva Salmani‐Rezaie, Darrell G. Schlom, Kaveh Ahadi   +15 more
wiley   +1 more source