Oscillations of interlayer exchange coupling and giant magnetoresistance in (111) oriented permalloy/Au multilayers

Journal Article · Mon Jun 06 04:00:00 EDT 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.3718· OSTI ID:7114853

Parkin, S S.P.; Farrow, R F.C.; Marks, R F; Cebollada, A; Harp, G R; Savoy, R J ^[1]

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1. IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120-6099 (United States)

The existence or not of oscillatory interlayer exchange coupling of ferromagnetic layers via (111) oriented copper spacer layers is controversial. We present evidence from magnetic and giant magnetoresistance studies of well-defined antiferromagnetic interlayer coupling in single crystalline (111) permalloy/Au multilayers. Four oscillations in the coupling are observed as the Au spacer layer thickness is increased. The oscillation period is [congruent]10 A which is significantly shorter than the period of [congruent]11.5 A predicted in Ruderman-Kittel-Kasuya-Yosida based models.

• OSTI ID: 7114853
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:23; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
AMBIENT TEMPERATURE
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXCHANGE INTERACTIONS
FERROMAGNETIC MATERIALS
GOLD
INTERACTIONS
IRON ALLOYS
MAGNETIC MATERIALS
MAGNETIZATION
MAGNETORESISTANCE
MATERIALS
METALS
MONOCRYSTALS
NICKEL ALLOYS
OSCILLATIONS
PERMALLOY
PHYSICAL PROPERTIES
TRANSITION ELEMENTS