Ab initio calculations of the curie temperature of complex permanent-magnet materials

R. F. Sabiryanov, S. S. Jaswal

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The nitrogenation of rare-earth-transition-metal compounds (R2M17) more than doubles the Curie temperature (TC) of iron-rich compounds but lowers TC of cobalt-rich compounds. Self-consistent spin-polarized electronic-structure calculations are carried out to understand this unusual behavior of TC. TC is calculated using the Heisenberg model and finite-size scaling in Monte Carlo simulations. The calculated values of TC are in very good agreement with the experimental data.

Original languageEnglish (US)
Pages (from-to)155-158
Number of pages4
JournalPhysical Review Letters
Volume79
Issue number1
DOIs
StatePublished - Jan 1 1997

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cobalt compounds
nitrogenation
iron compounds
metal compounds
permanent magnets
Curie temperature
rare earth elements
transition metals
electronic structure
scaling
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ab initio calculations of the curie temperature of complex permanent-magnet materials. / Sabiryanov, R. F.; Jaswal, S. S.

In: Physical Review Letters, Vol. 79, No. 1, 01.01.1997, p. 155-158.

Research output: Contribution to journalArticle

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