Chromium sublattice magnetic ordering in a compound of the ThCr2Si2 type structure: HoCr2Si2

Authors
Moze, O Hofmann, M Buschow, KHJ
Citation
O. Moze et al., Chromium sublattice magnetic ordering in a compound of the ThCr2Si2 type structure: HoCr2Si2, J ALLOY COM, 308, 2000, pp. 60-63
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
308
Year of publication
2000
Pages
60 - 63
Database
ISI
SICI code
0925-8388(20000810)308:<60:CSMOIA>2.0.ZU;2-8
Abstract
A neutron diffraction investigation of the intermetallic compound HoCr2Si2 has been carried out over the temperature range 1.7-470 K. The data clearly demonstrate that the Cr sublattice in this compound is ordered for the who le range of temperatures investigated. Chromium atoms at 4d sites are align ed anti-parallel along the c axis. The refined value of the ordered Cr mome nt is 1.48(4) mu(B), at 293 K and 1.60(4) mu(B) at 25 K The magnetic space group is 14'/m 'm 'm, with G(z)(-) Mn magnetic modes at 4d sites. The Ho an d Cr sublattices order independently, with Ho moments at 2a sites ordering below 1.7 K. (C) 2000 Elsevier Science S.A. All rights reserved.