Magnetic and magneto-optic properties of amorphous GdFeBi-films (invited)

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

DOI:https://doi.org/10.1063/1.326923· OSTI ID:5894531

Hansen, P; Urner-Wille, M

Amorphous rare-earth-transition metal alloys of composition (Gd/sub 1-x/Fe/sub x/)/sub 1-y/Bi/sub y/ with 0< or =y< or =0.17 have been prepared by high vaccum electron gun evaporation onto rotating glass substrates. The magnetic and magneto-optic properties have been investigated in the temperature range 4.2 K< or =T< or =T/sub C/. From the temperature dependence of the saturation magnetization the compensation temperature is found to decrease strongly with increasing y (T/sub comp/=0 for x=0.74, y=0.1) while the Curie temperature and the temperature for crystallization are much less affected. The magneto-optic Faraday and Kerr rotation display a considerable increase with increasing Bi-content. The temperature behavior can be interpreted in terms of the mean field analysis indicating a pronounced influence of the bismuth on the iron moment and the exchange constants.

• Research Organization: Philips GmbH Forschungslaboratorium Hamburg, D-2000 Hamburg 54, FRG
• OSTI ID: 5894531
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:B11; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
ALLOY SYSTEMS
ALLOYS
AMORPHOUS STATE
BISMUTH ALLOYS
CURIE POINT
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
FARADAY EFFECT
GADOLINIUM ALLOYS
IRON ALLOYS
KERR EFFECT
MAGNETIC PROPERTIES
MAGNETIZATION
MAGNETO-OPTICAL EFFECTS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
TEMPERATURE DEPENDENCE
TERNARY ALLOY SYSTEMS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE