Determination of the local magnetization caused by short-range order from the paraprocess magnetostriction dependences of a ferromagnet

Author

Minakov, A.A. ; Shvets, I.V.

Author_Institution

Gen. Phys. Inst., Acad. of Sci., Moscow, USSR

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

2840

Lastpage

2842

Abstract

It is shown that the local magnetization caused by short-range order can be deduced from the paraprocess magnetostriction dependencies of a ferromagnet. The local magnetization vs. temperature is plotted for ferromagnets CdCr₂Se₄ and Cd_0.8Zn_0.2Cr₂Se₄. The value of spontaneous volume striction at T=0 K is obtained from the experimental results and shown to be in good agreement with estimates obtained from thermodynamic considerations. The local magnetization at the Curie temperature for these ferromagnets is shown to be about (0.2-0.3)×M₂(T=0 K). The temperature range ΔT of the short-range order region is greater for Cd_0.8Zn_0.2Cr₂Se₄ than for CdCr₂Se₄

Keywords

cadmium compounds; chromium compounds; ferromagnetic properties of substances; magnetic semiconductors; magnetisation; magnetostriction; short-range order; ternary semiconductors; zinc compounds; Cd_0.8Zn_0.2Cr₂Se₄; CdCr₂Se₄; Curie temperature; ferromagnet; local magnetization; paraprocess magnetostriction dependences; short-range order; spontaneous volume striction; thermodynamic considerations; Crystallization; Electrical resistance measurement; Elementary particle exchange interactions; Extraterrestrial measurements; Magnetic anisotropy; Magnetization; Magnetostriction; Perpendicular magnetic anisotropy; Strain measurement; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104894

Filename

104894