Results 331 to 340 of about 551,694 (368)

Observation of giant room-temperature anisotropic magnetoresistance in the topological insulator β-Ag₂Te. [PDF]

Nat Commun
Ai W, Chen F, Liu Z, Yuan X, Zhang L, He Y, Dong X, Fu H, Luo F, Deng M, Wang R, Wu J.   +11 more
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Topological insulator vertical-cavity laser array

Science, 2021
Description Topologically locked for emission The output power from a laser system can be increased by forming an array of lasers; however, because the individual lasers are independent, the resultant output may not be coherent. Dikopoltsev et al. report
A. Dikopoltsev, T. Harder, Eran Lustig, O. Egorov, J. Beierlein, A. Wolf, Y. Lumer, M. Emmerling, C. Schneider, S. Höfling, M. Segev, S. Klembt   +11 more
semanticscholar   +1 more source

Opportunities in topological insulator devices

Nature Reviews Physics, 2021
Topological insulators (TIs) hold promise as a platform for unique quantum phenomena. However, realizing these phenomena experimentally requires sophisticated devices. In this Technical Review, we discuss four topics of particular interest for TI devices:
O. Breunig, Y. Ando
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Prediction and observation of an antiferromagnetic topological insulator

Nature, 2018
Magnetic topological insulators are narrow-gap semiconductor materials that combine non-trivial band topology and magnetic order1. Unlike their nonmagnetic counterparts, magnetic topological insulators may have some of the surfaces gapped, which enables ...
M. Otrokov, I. Klimovskikh, H. Bentmann, D. Estyunin, A. Zeugner, Ziya S. Aliev, Sebastian Gass, A. Wolter, A. Koroleva, A. Shikin, M. Blanco-Rey, M. Hoffmann, I. P. Rusinov, A. Vyazovskaya, S. Eremeev, Y. Koroteev, V. M. Kuznetsov, F. Freyse, J. S'anchez-Barriga, I. Amiraslanov, M. Babanly, N. Mamedov, N. Abdullayev, V. Zverev, A. Alfonsov, V. Kataev, Bernd Buchner, E. Schwier, Shiv Kumar, A. Kimura, L. Petaccia, G. D. Santo, R. C. Vidal, S. Schatz, K. Kissner, M. Unzelmann, C. Min, S. Moser, T. Peixoto, F. Reinert, A. Ernst, P. Echenique, Anna Isaeva, E. Chulkov   +43 more
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Observation of a phononic quadrupole topological insulator

Nature, 2017
The modern theory of charge polarization in solids is based on a generalization of Berry’s phase. The possibility of the quantization of this phase arising from parallel transport in momentum space is essential to our understanding of systems with ...
M. Serra-Garcia, Valerio Peri, Roman Süsstrunk, O. Bilal, T. Larsen, L. Villanueva, S. Huber   +6 more
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Photonic topological insulators

SPIE Newsroom, 2014
We review the recent progress on the first experimental demonstration of photonic topological insulators, along with a variety of new ideas associated with it.
Mordechai Segev, Yonatan Plotnik, Mikael Rechtsman, Yaakov Lumer, Miguel A. Bandres, Julia M. Zeuner, Alexander Szameit   +6 more
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Topology behind Topological Insulators

Reports on Mathematical Physics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ray, Koushik, Sen, Siddhartha
openaire   +2 more sources

Development of topological insulator and topological crystalline insulator nanostructures

Nanotechnology, 2020
Topological insulators (TIs), a class of quantum materials with time reversal symmetry protected gapless Dirac-surface states, have attracted intensive research interests due to their exotic electronic properties. Topological crystalline insulators (TCIs), whose gapless surface states are protected by the crystal symmetry, have recently been proposed ...
Chieh-Wen Liu, Zhenhua Wang, Richard L J Qiu, Xuan P A Gao   +3 more
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Robust zero-energy modes in an electronic higher-order topological insulator

Nature Materials, 2019
Quantum simulators are essential tools for understanding complex quantum materials. Platforms based on ultracold atoms in optical lattices and photonic devices have led the field so far, but the basis for electronic quantum simulators is now being ...
S. Kempkes, M. Slot, J. J. V. D. Broeke, P. Capiod, W. Benalcazar, D. Vanmaekelbergh, D. Bercioux, D. Bercioux, I. Swart, C. M. Smith   +9 more
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Exciton-polariton topological insulator

Nature, 2018
Topological insulators—materials that are insulating in the bulk but allow electrons to flow on their surface—are striking examples of materials in which topological invariants are manifested in robustness against perturbations such as defects and ...
S. Klembt, T. Harder, O. Egorov, K. Winkler, R. Ge, M. Bandres, M. Emmerling, L. Worschech, T. Liew, M. Segev, C. Schneider, S. Höfling, S. Höfling   +12 more
semanticscholar   +1 more source