Oscillation period of the interlayer coupling in epitaxial Fe/{sub 1-x}V{sub x}(100) and (211) superlattices.

Conference · Tue Sep 22 04:00:00 EDT 1998

OSTI ID:10829

You, C -Y

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 N-centered ellipse as the origin of the 18-{angstrom} period in Fe/Cr superlattices.

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10829
• Report Number(s): ANL/MSD/CP-96580
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM ALLOYS
CRYSTAL STRUCTURE
DOPED MATERIALS
FERMI LEVEL
IRON ALLOYS
MAGNETIC MATERIALS
MAGNETORESISTANCE
ORIENTATION
OSCILLATIONS
SUPERLATTICES
VANADIUM ALLOYS