Electronic structure and magnetic properties of Y-Fe compounds

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

A low concentration of rare earths (Formula presented) plays an important role in magnetic materials because of their large anisotropy. However, the Curie temperature (Formula presented) has a decreasing trend with increasing Fe concentration in (Formula presented)-Fe compounds. In order to understand the variation of (Formula presented) as a function of iron concentration we carry out self-consistent spin-polarized electronic structure calculations for the sequence (Formula presented) where yttrium is a prototype (Formula presented) element. The exchange interaction parameters are derived using the infinitesimal angle approach. The Monte Carlo simulations based on the Heisenberg Hamiltonian are carried out to derive (Formula presented) of Y-Fe compounds and results are in very good agreement with experimental data. The changes in the magnetic properties with Fe concentration are analyzed in terms of the local environment and magnetovolume effects.

Original languageEnglish (US)
Pages (from-to)7767-7772
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number13
DOIs
StatePublished - Jan 1 1998

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Yttrium
Hamiltonians
Magnetic materials
Exchange interactions
Curie temperature
Rare earths
Electronic structure
Magnetic properties
Anisotropy
Iron
electronic structure
magnetic properties
environment effects
Monte Carlo simulation
magnetic materials
yttrium
low concentrations
rare earth elements
prototypes
trends

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Electronic structure and magnetic properties of Y-Fe compounds. / Sabirianov, Renat F; Jaswal, S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 57, No. 13, 01.01.1998, p. 7767-7772.

Research output: Contribution to journalArticle

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