Title of article
Magnetoresistance in point contacts of the Heusler alloy Co2Cr0.6Fe0.4Al
Author/Authors
Clifford، نويسنده , , E. and Venkatesan، نويسنده , , M. and Gunning، نويسنده , , R. and Coey، نويسنده , , J.M.D.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
4
From page
61
To page
64
Abstract
Following a recent report predicting half-metallicity of Co2Cr0.6Fe0.4Al, we have examined point contacts of this material. Large magnetoresistances (up to 80%) have been observed at room temperature in small fields (10 mT). Magnetostriction in these fields is negligible. A spin polarisation of 81% is inferred. Mössbauer spectra show that 90% of the iron is ordered. The magnetisation of the alloy is 3.65μB per formula unit, and its Curie temperature is 665 K.
Keywords
D. Magnetoresistance , A. Heusler alloy , D. Spin polarisation , A. Half metal
Journal title
Solid State Communications
Serial Year
2004
Journal title
Solid State Communications
Record number
1789025
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