Study of Electronic Structure In Ni3Fe/Al2O3/Ni3Fe Magnetic Tunnel Junction with Various Ferromagnetic Layer Thicknesses

Abstract:

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A series models of Ni3Fe/Al2O3/Ni3Fe magnetic tunnel junction with Al-terminated interfaces have been established for investigating the influence of ferromagnetic layer thickness on the electronic structure, employing first-principle methods based on local spin-density approximation theory. The spin polarization of the interfacial Ni3Fe monolayer shows a maximum value as the thickness of ferromagnetic layer increases. The Al monolayers at the ferromagnetic/insulating interface and the O monolayer in the interior of insulating layer are also studied in terms of the change of spin polarization with the ferromagnetic layer thickness. In addition, we have found that the structure of Ni3Fe monolayer has a great influence on the spin polarization.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

3909-3914

DOI:

10.4028/www.scientific.net/MSF.475-479.3909

Citation:

Y. Zhou et al., "Study of Electronic Structure In Ni3Fe/Al2O3/Ni3Fe Magnetic Tunnel Junction with Various Ferromagnetic Layer Thicknesses", Materials Science Forum, Vols. 475-479, pp. 3909-3914, 2005

Online since:

January 2005

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$35.00

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