In-plane anisotropy induced by rare gases in RE-Co amorphous films

Journal Article · Tue Aug 01 04:00:00 EDT 1978 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.325438· OSTI ID:6941764

Krishnan, R; Suran, G; Sztern, J; Jouve, H; Meyer, R

Postdeposition annealing of some sputtered rare-earth--cobalt (YCo/sub 3/, GdCo, and HoCo) amorphous films in an atmosphere of rare gases Ne, Ar, Kr, and Xe has been shown to induce a strong in-plane anisotropy K/sub u/approx. =-5 x 10/sup 5/ erg/cm/sup 3/. Also, after the rare-gas anneal, the coercive force and the resonance linewidth are remarkably reduced and one observes in YCo/sub 3/ films a well-defined spin-wave spectra which obeys well the quadratic-dispersion law. The presence of in-plane anisotropy in the annealed films is tentatively attributed to the formation of Co-Co pairs along the thickness.

• Research Organization: Laboratoire de Magnetisme, C.N.R.S. 92190 Meudon-Bellevue, France
• OSTI ID: 6941764
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 49:8; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
AMORPHOUS STATE
ANISOTROPY
COBALT ALLOYS
COBALT BASE ALLOYS
COERCIVE FORCE
ELEMENTS
FILMS
GADOLINIUM ALLOYS
HOLMIUM ALLOYS
KRYPTON
MAGNETIC PROPERTIES
NEON
NONMETALS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
RARE GASES
SPIN WAVES
XENON
YTTRIUM ALLOYS