Oscillation period of the interlayer coupling for epitaxial Fe/Cr{sub 1{minus}x}V{sub x}(100) and (211) superlattices

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.369904· OSTI ID:336645

You, C; Sowers, C H; Inomata, A; Jiang, J S; Bader, S D; Koelling, D D ^[1]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

The microscopic origin of the 18 {Angstrom} period in the oscillatory interlayer exchange coupling of Fe/Cr(100) and (211) superlattices is investigated by alloying the Cr spacer with V to alter its Fermi surface. The addition of V increases or decreases in size the various Fermi surface calipers that are candidates for governing the oscillation period, such as those that span the ellipse, lens, octahedron, and nested sheets. Epitaxial sputtered superlattices of (100) and (211) orientation were grown and characterized via magnetoresistance measurements as a function of spacer layer thickness for different V-doping levels. A small decrease of the oscillation period is found experimentally which strongly implicates the {ital N}-centered {ital ellipse} as the origin of the 18 {Angstrom} period in Fe/Cr superlattices. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 336645
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 85; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM ALLOYS
EPITAXY
FERMI LEVEL
FERROMAGNETIC MATERIALS
INTERFACES
IRON
MAGNETORESISTANCE
SPUTTERING
SUPERLATTICES
VANADIUM ALLOYS