Magnetostriction of SmMn2Ge2 and GdMn2Ge2 intermetallic compounds

Authors
Guo, GH Levitin, RZ Snegirev, VV Filippov, DV
Citation
Gh. Guo et al., Magnetostriction of SmMn2Ge2 and GdMn2Ge2 intermetallic compounds, PHYS SOL ST, 43(3), 2001, pp. 496-500
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
43
Issue
3
Year of publication
2001
Pages
496 - 500
Database
ISI
SICI code
1063-7834(2001)43:3<496:MOSAGI>2.0.ZU;2-L
Abstract
Longitudinal and transverse magnetostrictions of polycrystalline samples of intermetallic compounds RMn2Ge2 (R = Sm or Gd) are measured in pulsed magn etic fields up to 250 kOe. It is found that linear magnetostrictive strains of about 10(-3) arise in a temperature range in which the magnetic field c auses a change in the magnetic state of a manganese magnetic subsystem. The results obtained are described within the model of a two-sublattice ferrim agnet with a negative exchange interaction in the manganese subsystem in te rms of a strong dependence of this interaction on interatomic distances. (C ) 2001 MAIK "Nauka / Interperiodica".