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Proceedings Paper

Quantum well states of a spacer in a magnetic metal sandwich system and exchange coupling
Author(s): Zhongcheng Wang; Shichang Zou; Shaofeng Wang
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Paper Abstract

In this paper a new, modified s-d model for studying the quantum well states in a metal space of a magnetic metal sandwich structure is presented. The model is based on the following consideration that (1) in the direction perpendicular to the surface the conduction electron is limited in an infinite deep potential well; (2) the localized magnetic moment model is adapted for describing the atoms in the ferromagnetic layers; (3) the spin-flip scattering process is neglected because of the Heisenburg interaction. The resulted electron states are that the energy level is split into two symmetrical ones for a ferromagnetic configuration, which is in agreement with the recent experiments on the exchange-split spin- polarized electronic states. It is found that this simple model can explain the oscillatory exchange coupling with long period well.

Paper Details

Date Published: 26 October 1994
PDF: 5 pages
Proc. SPIE 2364, Second International Conference on Thin Film Physics and Applications, (26 October 1994); doi: 10.1117/12.190789
Show Author Affiliations
Zhongcheng Wang, Shanghai Institute of Metallurgy (China)
Shichang Zou, Shanghai Institute of Metallurgy (China)
Shaofeng Wang, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 2364:
Second International Conference on Thin Film Physics and Applications
Shixun Zhou; Yongling Wang; Yi-Xin Chen; Shuzheng Mao, Editor(s)

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