Is the established structure of α-rhombohedral boron correct? Comparative study of IR-active phonons with B6O, B4.3C and β-rhombohedral boron.

Abstract

The established structure of α-rhombohedral boron, based on one B(12) icosahedron per unit cell only, is put in question. A careful evaluation of the IR-active phonons in comparison with B(6)O, B(4.3)C and β-rhombohedral boron makes it evident that-aside from the B(12) icosahedra-the α-rhombohedral boron structure also contains single boron atoms. We assume… (More)
DOI: 10.1088/0953-8984/24/30/305401

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