Analysis of the magnetic anisotropy in lt hdbit gt SmCo sub 5 and lt hdbit gt GdCo sub 5

Journal Article · Fri Nov 15 04:00:00 EST 1991 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.350020· OSTI ID:5164384

Zhao, T; Jin, H ^[1]; Groessinger, R ^[2]; Kou, X ^[3]; Kirchmayr, H R ^[2]

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1. Department of Physics, Jilin University, Changchun 130023 (People's Republic of China)
2. Institute of Experimental Physics, Technical University of Vienna (Austria)
3. Institute of Metal Research, Academia Sinica, Shenyang 110015 (People's Republic of China)

The temperature dependence of the magnetic anisotropy constant {ital K}{sub 1} for SmCo{sub 5} and GdCo{sub 5} is well reproduced by calculations based on a single-ion model taking into account the anisotropies of the R--Co exchange interaction and the Co-sublattice magnetic moment. The anisotropy of the R--Co exchange interaction plays an important role in reproducing the experimental {ital K}{sub 1}({ital T}) for SmCo{sub 5} and GdCo{sub 5}. It is found that the absolute value of the second order crystalline electric field parameter {ital A}{sup 0}{sub 2} in SmCo{sub 5} decreases monotonically with increasing temperature.

• OSTI ID: 5164384
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 70:10; 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
COBALT BASE ALLOYS
CRYSTAL FIELD
GADOLINIUM ALLOYS
INTERMETALLIC COMPOUNDS
MAGNETIC PROPERTIES
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SAMARIUM ALLOYS
TEMPERATURE DEPENDENCE