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Bulk band structure of Sb<sub>2</sub>Te<sub>3</sub> determined by angle-resolved photoemission spectroscopy
The bulk band structure of the topological insulator Sb2Te3 is investigated by angle-resolved photoemission spectroscopy. Of particular interest is the dispersion of the uppermost valence band with respect to the topological surface state Dirac point. The valence band maximum has been calculated to be either near the Brillouin zone centre …