Angular dependence of the perpendicular giant magnetoresistance of multilayers

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.1083· OSTI ID:286104

Dauguet, P; Gandit, P; Chaussy, J ^[1]; Lee, S F; Fert, A ^[2]; Holody, P ^[3]

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1. Centre de Recherches sur les Tres Basses Temperatures, Centre National de la Recherche Scientifique, Boite Postale 166, 38042 Grenoble Cedex 9 (France)
2. Unite Mixte de Recherche Thomson--CNRS, 91404 Orsay (France)
3. Department of Physics, Michigan State University, East Lansing, Michigan 48824 (United States)

We present measurements of the angular dependence of the giant magnetoresistance in multilayers with the current applied perpendicular to the layer plane. The samples used are (Ni{sub 80}Fe{sub 20}/Ag/Co/Ag) multilayers sandwiched between superconducting underlayers and overlayers. The angle between the magnetizations of the Ni{sub 80}Fe{sub 20} and Co layers is continuously varied. We find that the current-perpendicular-to-the-plane magnetoresistance of these multilayers varies as 1{minus}{ital a}cos{sup 2}({theta}/2)+{ital b}cos{sup 4}({theta}/2), where {theta} is the angle between the magnetization of successive magnetic layers and {ital b}/{ital a} is between 0.1 and 0.3. We discuss the theoretical interpretation of this variation. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286104
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 2 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
COBALT
ELECTRIC CONDUCTIVITY
IRON ALLOYS
LAYERS
MAGNETIZATION
MAGNETORESISTANCE
NICKEL BASE ALLOYS
NIOBIUM
SILVER
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE