Magnetic behavior of some rare earth germanides of the type RGe/sub 2/Fe/sub 2/. [R = Pr, Gd, Tb, Er, Th]

Conference · Thu Jan 01 04:00:00 EST 1976 · AIP (Am. Inst. Phys.) Conf. Proc.; (United States)

OSTI ID:7345678

Malik, S K ^[1]; Sankar, S G; Rao, V U.S.; Obermeyer, R

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1. Univ. of Pittsburgh

Magnetic properties of tetragonal rare earth germanides of the type RFe/sub 2/Ge/sub 2/, where R = Pr, Gd, Tb, Er and Th, were investigated in the temperature interval 4.2 to 273 K and in magnetic fields up to 20 kOe. The magnetization of ThFe/sub 2/Ge/sub 2/ is small and weakly temperature dependent. The compounds with Pr, Gd and Tb show antiferromagnetic ordering with Neel temperature of 14/sup 0/K, 11/sup 0/K and 7.5/sup 0/K, respectively. The Pr sublattice in PrFe/sub 2/Ge/sub 2/ and the Tb sublattice in TbFe/sub 2/Ge/sub 2/ both undergo a transition, which at 4.2/sup 0/K occurs at a field strength of about 15 kOe. The Gd compound does not show a transition up to a field of 20 kOe. The compound ErFe/sub 2/Ge/sub 2/ is paramagnetic in the temperature range investigated. However, some magnetization from Fe sublattice seems to be present in all the compounds.

• OSTI ID: 7345678
• Conference Information: Journal Name: AIP (Am. Inst. Phys.) Conf. Proc.; (United States) Journal Volume: 29
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ERBIUM ALLOYS
GADOLINIUM ALLOYS
GERMANIUM ALLOYS
IRON ALLOYS
MAGNETIC PROPERTIES
MAGNETIZATION
PHYSICAL PROPERTIES
PRASEODYMIUM ALLOYS
RARE EARTH ALLOYS
TERBIUM ALLOYS
TETRAGONAL LATTICES
THORIUM ALLOYS