Magnetic properties of GdT2Ge2 compounds (T=3d, 4d)
Creators
- 1. Amsterdam Univ. (Netherlands). Van der Waals-Zeeman Inst.
- 2. International Training Institute for Materials Science-ITIMS, 1 Dai Co Viet Str., Hanoi (Viet Nam)
Description
We have studied the magnetic properties of the GdT2Ge2 compounds (T=3d: Fe, Co, Ni, Cu, 4d: Ru, Rh, Pd) by means of DC susceptibility and high-field free-powder (HFFP) measurements. All compounds investigated were found to order antiferromagnetically at low temperatures. The two-sublattice model, without anisotropy, has been used to obtain experimental values for the intrasublattice coupling constant n11, and the intersublattice exchange coupling constant n12. The values of the intersublattice constants derived from the high-field data are in good agreement with those obtained from the temperature dependence of the susceptibility. The variations of n11 and n12 across the 3d and 4d series in GdT2Ge2 have been discussed in terms of changes of the lattice parameters, the unit-cell volume V and modifications of the transition metal electron band. (orig.)
Additional details
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 298
- Journal Issue
- 1-2
- Journal Page Range
- p. 18-25
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Switzerland
- INIS RN
- 31010562
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOYS; ANTIFERROMAGNETIC MATERIALS; ELECTRONIC STRUCTURE; EXCHANGE INTERACTIONS; GADOLINIUM ALLOYS; GERMANIUM ALLOYS; LATTICE PARAMETERS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; METALS; NEEL TEMPERATURE
- Descriptors DEC
- ALLOYS; ELEMENTS; INTERACTIONS; MAGNETIC MATERIALS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE
Optional Information
- Notes
- 9 refs.