Giant magnetoresistance calculated from first principles

Conference · Thu Sep 01 00:00:00 EDT 1994

OSTI ID:10183230

Butler, W H ^[1]; MacLaren, J M ^[2]; Zhang, X G ^[3]

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1. Oak Ridge National Lab., TN (United States)
2. Tulane Univ., New Orleans, LA (United States). Dept. of Physics
3. Univ. of Kentucky, Lexington, KY (United States). Center for Computational Sciences

The Layer Korringa Kohn Rostoker-Coherent Potential Approximation technique was used to calculate the low temperature Giant Magnetoresistance from first principles for Co{vert_bar}Cu and permalloy{vert_bar}Cu superlattices. Our calculations predict large giant magnetoresistance ratios for Co{vert_bar}Cu and extremely large ratios for permalloy{vert_bar}Cu for current perpendicular to the layers. Mechanisms such as spin-orbit coupling which mix spin channels are expected to greatly reduce the GMR effect for permalloy{vert_bar}Cu.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10183230
• Report Number(s): CONF-930405-58; ON: DE94018658; TRN: 94:008536
• Resource Relation: Conference: Spring meeting of the Materials Research Society,San Francisco, CA (United States),12-16 Apr 1993; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
PERMALLOY
MAGNETORESISTANCE
COBALT ALLOYS
COPPER ALLOYS
MATHEMATICAL MODELS
COUPLING
SPIN
SUPERLATTICES
360104
PHYSICAL PROPERTIES