Open AccessElectronic properties of UCuSn
Author(s) -
H. Nakotte,
Agus Purwanto,
R. A. Robinson,
K. Prokeš,
F.R. de Boer,
L. Havela,
V. Sechovský,
I. P. Swainson
Publication year - 1995
Language(s) - English
Resource type - Reports
DOI - 10.2172/106602
Subject(s) - magnetization , orthorhombic crystal system , condensed matter physics , ternary operation , metamagnetism , neutron diffraction , hexagonal crystal system , materials science , anomaly (physics) , crystallography , magnetic field , chemistry , crystal structure , physics , quantum mechanics , computer science , programming language
Crystallographic analysis shows that UCuSn does not form in the hexagonal CaIn{sub 2} structure as reported previously, but is an ordered ternary compound and forms in an orthorhombic structure. Bulk and neutron-diffraction measurements reveal that UCuSn orders antiferromagnetically below 60 K. At 4.2 K, high-field magnetization reveal a complex magnetization process with two metamagnetic transitions. Furthermore, bulk investigations show an additional anomaly at 25 K, but a regular temperature dependence of various magnetic peaks down to the lowest temperature gives no evidence for a second magnetic transition. Possible scenarios responsible for the drastic changes in the electronic properties around 25 K are discussed