MAGNETIC PHASE-TRANSITIONS IN THE TERNARY STANNIDES CE2T2SN WITH T=NI, PD AND PT

Authors
CHEVALIER B FOURGEOT F LAFFARGUE D ETOURNEAU J BOUREE F ROISNEL T
Citation
B. Chevalier et al., MAGNETIC PHASE-TRANSITIONS IN THE TERNARY STANNIDES CE2T2SN WITH T=NI, PD AND PT, Physica. B, Condensed matter, 230, 1997, pp. 195-197
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
230
Year of publication
1997
Pages
195 - 197
Database
ISI
SICI code
0921-4526(1997)230:<195:MPITTS>2.0.ZU;2-V
Abstract
Structural and magnetic properties of these new ternary stannides were studied. Ce2Ni2Sn adopts an orthorhombic structure related to the W2C oB2-type and exhibits the behaviour of an antiferromagnetically (T-N = 4.7 K) ordered Kondo system. On the contrary, Ce2Pd2.04Sn0.96 and Ce2 Pt2Sn stannides crystallize in an ordered version of the tetragonal U3 Si2-type structure. Ce2Pd2.04Sn0.96 shows two magnetic transitions: be low T-N = 4.8 K the antiferromagnetic structure is described by a prop agation vector q = (0.112(3), 0, 0) at 4.5 K and at T-C congruent to 3 .0 K a ferromagnetic order takes place. Also Ce2Pt2Sn presents magneti c orderings at low temperature.