Electrical transport properties of bulk Ni{sub c}Fe{sub 1{minus}c} alloys and related spin-valve systems
Journal Article
·
· Physical Review B
Within the Kubo-Greenwood formalism we use the fully relativistic, spin-polarized, screened Korringa-Kohn-Rostoker method together with the coherent-potential approximation for layered systems to calculate the resistivity for the permalloy series Ni{sub c}Fe{sub 1{minus}c}. We are able to reproduce the variation of the resistivity across the entire series; notably the discontinuous behavior in the vicinity of the structural phase transition from bcc to fcc. The absolute values for the resistivity are within a factor of 2 of the experimental data. Also the giant magnetoresistance of a series of permalloy-based spin-valve structures is estimated; we are able to reproduce the trends observed on prototypical spin-valve structures.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40203476
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 22 Vol. 63; ISSN 0163-1829
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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