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

R. F. Sabiryanov, S. S. Jaswal

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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
Issue number1
Publication statusPublished - Jan 1 1997


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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