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Nonlinear Structural and Magnetic Transition in Co-Doped Fe2VGa Heusler Alloy

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Abstract:

By using local spin density approximation (LSDA) scheme within the density functional theory (DFT), the structural, magnetic and electronic properties of Heusler alloy Fe2V1-xCoxGa were comprehensively investigated. The results reveal that with the increase of Co-doped concentration, in Fe2V1-xCoxGa alloy, a nonmagnetic-ferromagnetic transition appears, and the nonlinearly structural and magnetic variation respectively against the linear Vegard law and Slater-Pauling rule are also detected. Further analysis of electronic structure reveals that both contributions from Fe-Co and Fe-V magnetic interaction in Fe2V1-xCoxGa alloy play a dominating role in determining the nonlinear magnetic and electronic behaviors.

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Periodical:

Advanced Materials Research (Volumes 641-642)

Pages:

452-455

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.641-642.452

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Online since:

January 2013

Authors:

Bo Wu, Song Zhang, Xiu De Yang

Keywords:

Electronic Structure, Heusler Alloy, Magnetism

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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