Perpendicular magnetic anisotropy in sputtered GdCo films

Journal Article · Thu Feb 01 04:00:00 EST 1979 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.326097· OSTI ID:6377717

Esho, S

Strong perpendicular magnetic anisotropy has been observed in GdCo films deposited by zero-bias sputtering with an Ar-N/sub 2/ gas. As the nitrogen partial pressure of the sputtering gas increases, the perpendicular anisotropy constant increases and the Co sublattice moment of the films becomes large. The saturation magnetization of the films shows a steep temperature dependence near the magnetic compensation temperature. A molecular field theory indicates that the steep temperature dependence arises from the change in the exchange constant for the Gd-Co interaction. The perpendicular anisotropy may result from the exchange constant change.

• Research Organization: Central Research Laboratories, Nippon Electric Co., Ltd., Miyazaki, Takatsu-ku, Kawasaki, 213, Japan
• OSTI ID: 6377717
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:2; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
AMORPHOUS STATE
ANISOTROPY
ARGON
COBALT ALLOYS
CRYOGENIC FLUIDS
ELEMENTS
EXCHANGE INTERACTIONS
FILMS
FLUIDS
GADOLINIUM ALLOYS
INTERACTIONS
MAGNETIC PROPERTIES
MAGNETIZATION
NITROGEN
NONMETALS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
RARE GASES
SPUTTERING
TEMPERATURE DEPENDENCE