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Study on Electronic Structure and Magnetic Properties of Ni3Fe Ferromagnetic Layer Adjacent to Cu

Published online by Cambridge University Press:  03 March 2011

Xiaofang Bi ,
Xiaoyu Yuan ,
Shengkai Gong  and
Huibin Xu
Xiaofang Bi
Affiliation:
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
Xiaoyu Yuan
Affiliation:
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
Shengkai Gong
Affiliation:
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
Huibin Xu
Affiliation:
School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, People’s Republic of China
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Abstract

The effect of a Cu layer on the electronic structure and magnetic properties of Ni3Fe was studied by employing the discrete-variational method in the framework of density-functional theory. Three models were established for Ni3Fe(6), Ni3Fe(3)/Cu(3)/Ni3Fe(3), and Ni3Fe(3)/Cu(3). The charge transfer, magnetic moment, and spin exchange split at the Fermi level were obtained for Fe and Ni atoms in a Ni3Fe layer. The related characterizations of Ni3Fe were estimated from those of Fe and Ni atoms. It was discovered that the magnetic properties of the Ni3Fe layer improved when adjacent to Cu layer due to the improvement of the corresponding properties of the Fe atoms in the Ni3Fe. However, the magnetic moment and the spin exchange split of the Ni atoms in the Ni3Fe decreased when the Ni3Fe was adjacent to a Cu layer.

Keywords

Electronic structureMagnetic properties
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 1 , January 2005 , pp. 36 - 41
Copyright
Copyright © Materials Research Society 2004

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