Electrical transport properties of bulk NicFe1-c alloys and related spin-valve systems

Article

关键词: 2-CURRENT MODEL;    MAGNETORESISTANCE;    RESISTIVITY;   

DOI  :  10.1103/PhysRevB.63.224408

来源: SCIE

【 摘 要 】

Within the Kubo-Greenwood formalism we use the fully relativistic, spin-polarized, screened Koninga-Kohn-Rostoker method together with the coherent-potential approximation for layered systems to calculate the resistivity for the permalloy series NizFe1-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 fee. 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.

【 授权许可】

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