Electronic structure and magnetism in Sm{sub 2}Fe{sub 17{minus}{ital x}}A{sub {ital x}} (A=Al,Ga,Si)

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.362114· OSTI ID:280077

Sabirianov, R F; Jaswal, S S ^[1]

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1. Behlen Laboratory of Physics and Center for Materials Research and Analysis, University of Nebraska, Lincoln, Nebraska 68588-0111 (United States)

Self-consistent spin{endash}polarized electronic structure calculations have been carried out to derive the magnetic properties of the Sm{sub 2}Fe{sub 17{minus}{ital x}}A{sub {ital x}} (A=Al, Ga, Si and {ital x}=0 and 1). The influence of impurities on the Curie temperature ({ital T}{sub {ital C}}) of Sm{sub 2}Fe{sub 17} has been studied using the spin{endash}fluctuation approach of Mohn and Wohlfarth. The calculated {ital T}{sub {ital C}} generally goes up with the addition of each impurity but the relative increase in {ital T}{sub {ital C}} depends on the type of the impurity and its site. The calculated {ital T}{sub {ital C}} enhancement weighted with the impurity-site occupancy from M{umlt o}ssbauer data are in good agreement with the experimental data. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 280077
• Report Number(s): CONF-951101--
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 79; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM COMPOUNDS
CURIE POINT
ELECTRONIC STRUCTURE
EXCHANGE INTERACTIONS
GALLIUM COMPOUNDS
IRON COMPOUNDS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MAGNETIC ORDERING
MAGNETIC PROPERTIES
SAMARIUM COMPOUNDS
SILICON COMPOUNDS
SPIN FLUCTUATIONS
STABILITY