Magnetic properties of amorphous alloy films of Fe with Gd, Tb, Dy, Ho, or Er

Journal Article · Wed Mar 01 00:00:00 EST 1978 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.325008· OSTI ID:5123058

Mimura, Y; Imamura, N; Kobayashi, T; Okada, A; Kushiro, Y

Amorphous rare-earth RE(Gd, Tb, Dy, Ho, Er) -Fe films prepared by cosputtering were studied. The compositional analysis was obtained from known deposition profiles, x-ray microanalysis, and the stripe-width measurements. The structural variation with composition change was investigated by electron diffraction and dark-field microscopy. The Curie temperature T/sub c/, the compensation temperature T/sub comp/, the coercive force H/sub c/, the uniaxial anisotropy energy K/sub u/ and the static domain properties such as the stripe width W/sub s/, the wall energy sigma/sub w/, and the exchange stiffness constant A were investigated. The systematic variation of T/sub c/ and T/sub comp/ associated with a variation of composition and RE species could be described by the Heiman et al. model. The static domain properties could be interpreted in terms of the wall energy model and the mean field approximation of the exchange stiffness constant A.

• Research Organization: KDD Research and Development Laboratory, 1-23, 2-Chome, Nakameguro, Meguro-Ku, Tokyo, Japan
• OSTI ID: 5123058
• Journal Information: J. Appl. Phys.; (United States), Vol. 49:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DYSPROSIUM ALLOYS
MAGNETIC PROPERTIES
ERBIUM ALLOYS
GADOLINIUM ALLOYS
HOLMIUM ALLOYS
TERBIUM ALLOYS
AMORPHOUS STATE
ANISOTROPY
COERCIVE FORCE
CURIE POINT
DOMAIN STRUCTURE
FILMS
IRON ALLOYS
MAGNETIZATION
TEMPERATURE DEPENDENCE
ALLOYS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
360104* - Metals & Alloys- Physical Properties