Magneto-optical study of uranium additions to amorphous Tb/sub x/Fe/sub 1-//sub x/

Journal Article · Sun Feb 01 04:00:00 EST 1987 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.338206· OSTI ID:6811076

Dillon, Jr, J F; van Dover, R B; Hong, M; Gyorgy, E M; Albiston, S D

Recent reports of huge magneto-optical Kerr rotations in certain crystalline metallic uranium compounds prompted a study of the magnetic and magneto-optical effects of uranium additions to a rare-earth transition metal amorphous alloy. Using variable composition samples, the polar Kerr effect at a small spot (e.g., 0.5 mm diam) was measured as field, temperature, and composition were varied. Points on the Curie line and the edges of the compensation region were determined from these observations. The compositions studied included (Tb/sub x/Fe/sub 1-//sub x/)/sub 1-//sub y/U/sub y/ with 0.125less than or equal toxless than or equal to0.550 and y = 0.0, 0.04, 0.07, 0.16. The addition of uranium to Tb/sub x/Fe/sub 1-//sub x/ depresses the T/sub C/ of Tb-rich material much more strongly than that of Tb-poor material. The compensation region does not shift at all with increasing y. It appears that uranium does not contribute to the magnetization of these amorphous alloys, nor does it significantly affect the magneto-optical effects.

• Research Organization: AT and T Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 6811076
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 61:3; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
AMORPHOUS STATE
CHEMICAL COMPOSITION
CURIE POINT
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
IRON ALLOYS
KERR EFFECT
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETO-OPTICAL EFFECTS
METALLIC GLASSES
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
TEMPERATURE EFFECTS
TERBIUM ALLOYS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
URANIUM ADDITIONS
URANIUM ALLOYS