Magnetic and transport properties of ferromagnet NdCrSb3

Citation
L. Deakin et al., Magnetic and transport properties of ferromagnet NdCrSb3, CHEM MATER, 13(4), 2001, pp. 1407-1412
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
CHEMISTRY OF MATERIALS
ISSN journal
08974756 → ACNP
Volume
13
Issue
4
Year of publication
2001
Pages
1407 - 1412
Database
ISI
SICI code
0897-4756(200104)13:4<1407:MATPOF>2.0.ZU;2-Y
Abstract
NdCrSb3, a compound containing alternating layers of Nd and Cr atoms in its structure, undergoes two ferromagnetic ordering transitions. At 107.8 K,fe rromagnetic ordering of the Cr moments occurs; at 12.7 K, ferromagnetic ord ering of the Nd and Cr moments occurs. Neutron diffraction studies place th e magnetization axis for the ordered Cr moments along [010], and for the co upled Nd and Cr moments along [100]. These transitions are also observed in the temperature dependence of the de magnetization, and as maxima in the c hi'(ac) and chi"(ac) magnetic susceptibilities. Hysteresis loops at and 40 K revealed saturation magnetization values of 3.70 and 2.37 mu (B)/f.u. and coercive fields of 2100 and 400 Oe, respectively. The saturation magnetiza tion of 3.7 mu (B) at 2 K is the same as that determined from neutron diffr action studies. Both ferromagnetic ordering transitions are manifested as k inks in the temperature dependence of the electrical resistivity. Field-dep endent resistivity measurements made between 2 and 130 K indicate negative magnetoresistance behavior with values up to -13%.