Preparation of TbFeCo thin films with large Kerr rotation angle by facing targets sputtering

Journal Article · Tue May 01 00:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344593· OSTI ID:6949776

Ito, H; Yamaguchi, M ^[1]; Naoe, M ^[2]

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1. Corporate Research and Development Laboratory, Pioneer Electronic Corp., Tsurugashima-machi, Saitama, 350-02, Japan (JP)
2. Department of Physical Electronics, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152, Japan (JP)

The TbFeCo films were prepared at argon gas pressure {ital P}{sub Ar} of 0.8 and 3.6 mTorr by using the facing targets sputtering (FTS) apparatus. The films showed the polar Kerr rotation angle {theta}{sub {ital k}} as large as 0.43{degree} at a wavelength of 830 nm. In polar Kerr hysteresis loops, the films with large {theta}{sub {ital k}} showed the rectangular loops in which the gradient of magnetization at an applied field of coercivity was extremely large. Moreover, the films deposited at {ital P}{sub Ar} of 0.8 mTorr showed the strong wavelength dependence of {theta}{sub {ital k}} compared with the ones deposited at {ital P}{sub Ar} of 3.6 mTorr.

• OSTI ID: 6949776
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 67:9; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COBALT ALLOYS
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
FILMS
HYSTERESIS
IRON ALLOYS
KERR EFFECT
MAGNETO-OPTICAL EFFECTS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SPUTTERING
TERBIUM ALLOYS
THIN FILMS