Deposition-temperature dependence of structural anisotropy in amorphous Tb-Fe films

Journal Article · Tue Feb 01 04:00:00 EST 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.49.3637· OSTI ID:6654052

Harris, V G; Elam, W T; Koon, N C ^[1]; Hellman, F ^[2]

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1. U.S. Naval Research Laboratory, Washington, D.C. 20375-5000 (United States)
2. University of California at San Diego, La Jolla, California 92093 (United States)

The anisotropic local structure in a series of amorphous Tb[sub 26]Fe[sub 74] films deposited at different deposition temperatures and having different magnetic anisotropy energies have been investigated using polarization-dependent extended x-ray-absorption fine-structure measurements. Samples deposited at temperatures [ge]300 K exhibit anisotropic pair correlations where like atomic pairs are favored in plane and unlike pairs are favored out of plane. Both the anisotropic pair correlations and the perpendicular magnetic anisotropy increase with increasing deposition temperature. In contrast, a sample deposited at 77 K was found to have isotropic pair correlations, low perpendicular magnetic anisotropy, and a large ([approx]1%) in-plane compression.

• OSTI ID: 6654052
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 49:5; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ABSORPTION SPECTRA
ALLOY SYSTEMS
ALLOYS
AMORPHOUS STATE
ANISOTROPY
BINARY ALLOY SYSTEMS
DEPOSITION
FILMS
IRON ALLOYS
RARE EARTH ALLOYS
SPECTRA
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TERBIUM ALLOYS
THIN FILMS
X-RAY SPECTRA