In:
Zeitschrift für anorganische und allgemeine Chemie, Wiley, Vol. 636, No. 15 ( 2010-12), p. 2543-2549
Abstract:
A high‐pressure modification of MgB 2 C 2 was synthesized and structurally characterized. The compound crystallizes in the orthorhombic space group Pnnm , with the lattice parameters a = 7.19633(3) Å, b = 4.61791(13) Å and c = 2.77714(8) Å. The compound contains heterographene B–C nets, isoelectronic to graphite, just like the ambient pressure modification. The layers are intercalated by magnesium atoms, which are arranged in a chain‐like manner. According to Density Functional Theory (DFT) calculations, the high‐pressure form of MgB 2 C 2 is a semiconductor with a band gap of 1.02 eV. The compound does not undergo a superconducting transition down to 2 K.
Type of Medium:
Online Resource
ISSN:
0044-2313
,
1521-3749
DOI:
10.1002/zaac.v636.15
DOI:
10.1002/zaac.201000255
Language:
English
Publisher:
Wiley
Publication Date:
2010
detail.hit.zdb_id:
201094-X
detail.hit.zdb_id:
1481139-X
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