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Discovery of several large families of Topological Insulator classes with backscattering-suppressed spin-polarized single-Dirac-cone on the surface

Autor: Xu, Su-Yang, Wray, L. A., Xia, Y., Shankar, R., Petersen, A., Fedorov, A., Lin, H., Bansil, A., Hor, Y. S., Grauer, D., Cava, R. J., Hasan, M. Z.

Three dimensional (3D) topological insulators are novel states of quantum matter that feature spin-momentum locked helical Dirac fermions on their surfaces and hold promise to open new vistas in spintronics, quantum computing and fundamental physics.

Externí odkaz: http://arxiv.org/abs/1007.5111

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First observation of Spin-Momentum Helical Locking in Bi2Se3 and Bi2Te3, demonstration of Topological-Order at 300K and a realization of topological-transport-regime

Autor: Hsieh, D., Xia, Y., Qian, D., Wray, L., Dil, J. H., Meier, F., Osterwalder, J., Patthey, L., Checkelsky, J. G., Ong, N. P., Fedorov, A. V., Lin, H., Bansil, A., Grauer, D., Hor, Y. S., Cava, R. J., Hasan, M. Z.

Publikováno v: Hsieh et.al., NATURE 460, 1101-1105 (2009)

Both the theoretical and experimental discovery of single-Dirac-cone topological-insulator-class was reported at arXiv:0812.2078 (2008) [Y. Xia et.al., Nature Physics 5, 398-402 (2009) http://www.nature.com/nphys/journal/v5/n6/full/nphys1294.html]. H

Externí odkaz: http://arxiv.org/abs/1001.1590

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Time-reversal-protected single-Dirac-cone topological-insulator states in Bi2Te3 and Sb2Te3: Topologically Spin-polarized Dirac fermions with pi Berry's Phase

Autor: Hsieh, D., Xia, Y., Qian, D., Wray, L., Dil, J. H., Meier, F., Osterwalder, J., Patthey, L., Fedorov, A. V., Lin, H., Bansil, A., Grauer, D., Hor, Y. S., Cava, R. J., Hasan, M. Z.

Publikováno v: Phys. Rev. Lett. 103, 146401 (2009)

We show that the strongly spin-orbit coupled materials Bi2Te3 and Sb2Te3 (first non-Bi topological insulator) and their derivatives belong to the Z2 (Time-Reversal-Protected, elastic backscattering suppressed) topological-insulator class. Using a com

Externí odkaz: http://arxiv.org/abs/0909.4804

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Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface

Autor: Xia, Y., Qian, D., Hsieh, D., Wray, L., Pal, A., Lin, H., Bansil, A., Grauer, D., Hor, Y. S., Cava, R. J., Hasan, M. Z.

Publikováno v: Y. Xia et.al., NATURE PHYSICS 5, 398-402 (2009)

Recent theories and experiments have suggested that strong spin-orbit coupling effects in certain band insulators can give rise to a new phase of quantum matter, the so-called topological insulator, which can show macroscopic entanglement effects. Su

Externí odkaz: http://arxiv.org/abs/0908.3513

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Topological Control: Systematic control of topological insulator Dirac fermion density on the surface of Bi2Te3

Autor: Xia, Y., Qian, D., Hsieh, D., Shankar, R., Lin, H., Bansil, A., Fedorov, A. V., Grauer, D., Hor, Y. S., Cava, R. J., Hasan, M. Z.

Three dimensional (3D) topological insulators are quantum materials with a spin-orbit induced bulk insulating gap that exhibit quantum-Hall-like phenomena in the absence of applied magnetic fields. The proposed applications of topological insulators

Externí odkaz: http://arxiv.org/abs/0907.3089

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First observation of spin-helical Dirac fermions and topological phases in undoped and doped Bi2Te3 demonstrated by spin-ARPES spectroscopy

Autor: Hsieh, D., Xia, Y., Qian, D., Wray, L., Dil, J. H., Meier, F., Patthey, L., Osterwalder, J., Fedorov, A. V., Lin, H., Bansil, A., Grauer, D., Hor, Y. S., Cava, R. J., Hasan, M. Z.

Publikováno v: Partial Results published at NATURE 460, 1101 (2009).

Electron systems that possess light-like dispersion relations or the conical Dirac spectrum, such as graphene and bismuth, have recently been shown to harbor unusual collective states in high magnetic fields. Such states are possible because their li

Externí odkaz: http://arxiv.org/abs/0904.1260

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Electrons on the surface of Bi2Se3 form a topologically-ordered two dimensional gas with a non-trivial Berry's phase

Autor: Xia, Y., Wray, L., Qian, D., Hsieh, D., Pal, A., Lin, H., Bansil, A., Grauer, D., Hor, Y. S., Cava, R. J., Hasan, M. Z.

The interface between a superconductor and a topological insulator has been proposed to harbor novel quasiparticles that realize physical schemes for fault-tolerant quantum computation. Here, we present high resolution angle-resolved photoemission ex

Externí odkaz: http://arxiv.org/abs/0812.2078

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First observation of spin-helical Dirac fermions and topological phases in undoped and doped Bi2Te3 demonstrated by spin-ARPES spectroscopy

Autor: Hsieh, D, Xia, Y, Qian, D, Wray, L, Dil, JH, Meier, F, Patthey, L, Osterwalder, J, Fedorov, AV, Lin, H, Bansil, A, Grauer, D, Hor, YS, Cava, RJ, Hasan, MZ

Publikováno v: Hsieh, D; Xia, Y; Qian, D; Wray, L; Dil, JH; Meier, F; et al.(2018). First observation of spin-helical Dirac fermions and topological phases in undoped and doped Bi2Te3 demonstrated by spin-ARPES spectroscopy. Partial Results published at NATURE, 460, 1101. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/55p9c0kb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76911327403bb74216fb3a4c3c1872a2
http://www.escholarship.org/uc/item/55p9c0kb

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