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Superconductivity in Be2B? Comparative Analysis of the Band Structure of MgB2, BeB2 and Be2B

✍ Scribed by I.R. Shein; A.L. Ivanovskii

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 89 KB
Volume: 227
Category: Article
ISSN: 0370-1972
DOI: 10.1002/1521-3951(200110)227:2<r1::aid-pssb99991>3.0.co;2-4

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✦ Synopsis

M ¼ Mg, Be ** ) Total DOS N(E F ) is the sum of orbital DOS N l (E F ) in MT spheres. ences in the nature of covalent bonds. The main bonds for MgB 2 are formed mainly due to strong B-B interactions (in honeycomb layers of boron atoms) . For Be 2 B, all three types of bonds B-B, B-Be, and Be-Be are comparable (in terms of orbital overlap populations ). The ultimate conclusion as to the possibility of superconductivity in the beryllium semi-boride calls for the calculations of its phonon spectrum and evaluation of the electron-phonon coupling constant l. Such computations are currently under way.

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