Pressure-induced valence instability in Sm4Bi3

Jayaraman, A. ; Bucher, E. (1979) Pressure-induced valence instability in Sm4Bi3 Journal de Physique Colloques, 40 (C5). C5-350-C5-351. ISSN 0449-1947

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Sm4Bi3 has the anti-Th3P4 (cubic) structure with three Sm2+ ions and one Sm3+ ion. The compound undergoes a first-order, isostructural transition at about 26 kbar. The resistance abruptly decreases by a factor of three and the volume by about 10 %. The Sm2+ ions undergo a change towards the 3+ state in the transition and the material goes from semimetallic to a metallic state.

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ID Code:96011
Deposited On:30 Nov 2012 07:00
Last Modified:30 Nov 2012 07:00

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