Magnetic properties of bias-sputtered Gd/sub 1-x/Fe/sub x/ amorphous films
The room temperature magnetic properties of amorphous Gd/sub 1-x/Fe/sub x/ films prepared by dc biased rf sputtering are reported. For low magnetization films made at a fixed bias, the wall energies are found to be nearly constant, regardless of the film magnetization. Also, no trend in H/sub k/ or K/sub u/ versus 4..pi..M/sub s/ and little trend in K/sub u/ with bias voltage can be discerned. The uniaxial perpendicular anisotropy appears to be induced by compressive stresses from the glass substrates. Such stresses are attributed to the deposition process and not to thermal contraction effects between the film and the substrate. The exchange constant is estimated to be 1.8 x 10/sup -7/ erg/cm; the anisotropy energies are on the order of 4 x 10/sup 4/ erg/cc.
- Research Organization:
- Rice Univ., Houston, TX
- OSTI ID:
- 7317834
- Journal Information:
- AIP (Am. Inst. Phys.) Conf. Proc.; (United States), Journal Name: AIP (Am. Inst. Phys.) Conf. Proc.; (United States) Vol. 34; ISSN APCPC
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
ALLOY SYSTEMS
ALLOYS
AMORPHOUS STATE
ANISOTROPY
BINARY ALLOY SYSTEMS
COMPRESSION
ELECTRIC POTENTIAL
FILMS
GADOLINIUM ALLOYS
INTERMETALLIC COMPOUNDS
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETIZATION
MEDIUM TEMPERATURE
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SPUTTERING
STRESSES