Magnetic and magneto-optic properties in compositionally modulated TbCo films

Journal Article · Mon Feb 01 04:00:00 EST 1988 · IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/TJMJ.1988.4563657· OSTI ID:6965642

Yoneda, M ^[1]; Yoshiyama, M; Honda, S; Ohkoshi, M; Kusuda, T ^[2]

---

1. Daicel Chemical Industries (JP)
2. Hiroshima Univ. (JP)

This paper reports on the magnetooptical and magnetic properties of compositionally modulated TbCo films. Films were prepared on glass substrates by rf sputtering, using a modulating substrate bias voltage in one of the two sequences, {minus} 200 V/O V/.../O V or {minus} 250 V/O V/.../O V. Single-layer films deposited at O V have a higher perpendicular magnetic anisotropy Ku, a small Kerr rotation angle {theta}{sub k} and good chemical stability; while films formed under a high bias have a low Ku, large {theta}{sub k} and poor chemical stability. The period of modulation was varied between 1500 {angstrom} and 40 {angstrom}, and Rutherford backscattering spectrometry and small-angle x-ray scattering were used to confirm that films actually were compositionally modulated with these periods. The modulated films showed a higher Ku and greater resistance to oxidation.

• OSTI ID: 6965642
• Journal Information: IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Translation Journal on Magnetics in Japan (Institute of Electrical and Electronics Engineers); (USA) Vol. 3:2; ISSN ITJJE; ISSN 0882-4959
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360104* -- Metals & Alloys-- Physical Properties
426001 -- Engineering-- Superconducting Devices & Circuits-- (1990-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ANISOTROPY
BACKSCATTERING
CHEMICAL REACTIONS
COBALT ALLOYS
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
FILMS
GLASS
KERR EFFECT
MAGNETO-OPTICAL EFFECTS
OXIDATION
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
RF SYSTEMS
SCATTERING
SPUTTERING
STABILITY
SUBSTRATES
SUPERCONDUCTING FILMS
TERBIUM ALLOYS