Giant transverse hysteresis in an asperomagnet

Journal Article · Tue May 01 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.9585· OSTI ID:6986385

Coey, J M.D.; Freitas, P P; Plaskett, T S; Molnar, S von ^[1]

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1. IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598 (USA)

Comparison of the magnetoresistance of amorphous thin films of Tb{sub 80}U{sub 20} and the nonmagnetic analog Y{sub 80}U{sub 20} reveals hysteresis for the terbium alloy, which extends to fields in excess of 8 T at 4.2 K. Hysteresis is found in the magnetization curve only in fields below 4 T at the same temperature. The magnetoresistance effect, attributed to scattering of electrons by the frozen transverse spin components, which have spatial fluctuations on the scale of the interatomic spacing, is interpreted in terms of the magnetization process of the amorphous alloy. Evidence of weak localization is observed in both films below 1 K.

• OSTI ID: 6986385
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:13; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
AMORPHOUS STATE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
HYSTERESIS
MAGNETORESISTANCE
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
TERBIUM ALLOYS
THIN FILMS
ULTRALOW TEMPERATURE
URANIUM ALLOYS
YTTRIUM ALLOYS