Magnetic behavior of iron in ternary gadolinium-yttrium compounds

Journal Article · Wed Feb 28 23:00:00 EST 1979 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.326132· OSTI ID:6318762

Burzo, E; Ursu, I

We present the results of the magnetic measurements on (Gd/sub x/Y/sub 1-x/)Fe/sub 2/ compounds between 4.2 and 1300 K. For x>0 typical magnetization curves characteristic of ferrimagnetic ordering are evidenced. The reciprocal susceptibility follows a Neel-type relation. The composition dependence of the magnetic interactions in the system is analyzed. The iron moment scales linearly with the exchange field acting on Fe atoms. The correlation between the Fe/sup 57/ hyperfine field and the electronic moment M/sub Fe/ at the iron site in a number of rare-earth (yttrium) compounds is presented. A simple linear relation is found. Based on the above data a comparison between the thermal variation of iron magnetization, calculated using the Neel model, and that deduced from the hyperfine field is made. The data evidence that the molecular field model describes rather well the magnetic behavior of these systems. The results of ferromagnetic-resonance measurements in X and K bands are presented. The data are analyzed using the Vangsness relation. Finally, the magnetic behavior of iron atoms in these compounds is discussed.

• Research Organization: National Center of Physics, P. O. Box 5206, Bucharest, Romania
• OSTI ID: 6318762
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:3; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
DATA
DATA FORMS
EXCHANGE INTERACTIONS
EXPERIMENTAL DATA
FERRIMAGNETISM
FERROMAGNETIC RESONANCE
GADOLINIUM ALLOYS
INFORMATION
INTERACTIONS
IRON ALLOYS
IRON BASE ALLOYS
ISOLATED VALUES
MAGNETIC MOMENTS
MAGNETIC RESONANCE
MAGNETISM
MAGNETIZATION
NUMERICAL DATA
RARE EARTH ALLOYS
RESONANCE
TEMPERATURE DEPENDENCE
YTTRIUM ALLOYS