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Título

Observation of a highly spin-polarized topological surface state in GeBi 2Te 4

Autor Okamoto, K.; Miyamoto, K.; Shimada, K.; Namatame, H.; Taniguchi, M.; Menshchikova, T. V.; Chulkov, Eugene V. ; Kimura, A.
Fecha de publicación 2012
EditorAmerican Physical Society
Citación Physical Review B 86: 195304 (2012)
ResumenSpin polarization of a topological surface state for GeBi 2Te 4, the newly discovered three-dimensional topological insulator, has been studied by means of state-of-the-art spin- and angle-resolved photoemission spectroscopy. It has been revealed that the disorder in the crystal has a minor effect on the surface-state spin polarization, which is 70% near the Dirac point in the bulk energy gap region (∼180 meV). This finding promises not only to realize a highly spin-polarized surface-isolated transport but also to add functionality to its thermoelectric and thermomagnetic properties. © 2012 American Physical Society.
Descripción et al.
Versión del editorhttp://dx.doi.org/10.1103/PhysRevB.86.195304
URI http://hdl.handle.net/10261/102026
DOI10.1103/PhysRevB.86.195304
Identificadoresdoi: 10.1103/PhysRevB.86.195304
issn: 1098-0121
e-issn: 1550-235X
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