Experimental verification of PbBi2Te4 as a 3D topological insulator.

K, Kuroda; H, Miyahara; M, Ye; SV, Eremeev; YM, Koroteev; EE, Krasovskii; EV, Chulkov; S, Hiramoto; C, Moriyoshi; Y, Kuroiwa; K, Miyamoto; T, Okuda; M, Arita; K, Shimada; H, Namatame; M, Taniguchi; Y, Ueda; A, Kimura

doi:10.1103/physrevlett.108.206803

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Experimental verification of PbBi2Te4 as a 3D topological insulator.

Shared by NobleBlocks on May 15, 2012 • 12:00 AM UTC

Authors:

Kuroda K

Miyahara H

Ye M

Abstract

The experimental evidence is presented of the topological insulator state in PbBi2Te4. A single surface Dirac cone is observed by angle-resolved photoemission spectroscopy with synchrotron radiation. Topological invariants Z2 are calculated from the ab initio band structure to be 1;(111). The observ...

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