Investigation into magnetic anisotropy of low temperature phase (LTP) MnBi thin films

Author

Suzuki, T. ; Hozumi, T. ; Barker, J. ; Okatov, S. ; Mryasov, O.N. ; Suwa, T.

Author_Institution

Center for Mater. for Inf. Technol., Univ. of Alabama, Tuscaloosa, AL, USA

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

The low temperature phase (LTP) MnBi is known to exhibit the unique temperature dependence of a magnetic anisotropy constant K which increases with temperature from about 100K to 500K, reaching to about 5x10⁷erg/cc at 500K, attractive for high temperature device applications . Much work has been carried out to understand this magnetic anisotropy mechanism . A recent calculation showed a strong correlation of the lattice constant with the magnetic anisotropy energy of the LTP MnBi, but the experimental results are at variance with the calculation . The present study aims to elucidate the mechanism for its temperature dependence of LTP MnBi thin films .

Keywords

bismuth alloys; magnetic anisotropy; magnetic thin films; manganese alloys; metallic thin films; MnBi; lattice constant; low temperature phase thin films; magnetic anisotropy constant; magnetic anisotropy energy; temperature dependence; Lattices; Magnetic properties; Perpendicular magnetic anisotropy; Temperature dependence; Temperature distribution; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7156515

Filename

7156515