A green's function calculation of magnetic specific heat in cubic laves phase compounds

Autor: Christopher D. Wentworth, H. B. Brom, A.F. Deutz
Rok vydání: 1989
Předmět:
Zdroj: Physica B: Condensed Matter. 154:159-174
ISSN: 0921-4526
DOI: 10.1016/0921-4526(89)90064-1
Popis: A Green's function theory is developed for calculating the dispersion of magnetic excitations and magnetic specific heat in intermetallic rare-earth compounds with the cubic Laves phase structure. Isotropic Heisenberg exchange with a cubic crystal field is considered. Numerical results for dispersion curves and specific heat in the paramagnetic phase are presented for model parameters appropriate to TmAl2.
Databáze: OpenAIRE