Perturbed angular correlation study of the pseudo-binary system U(In1−xSnx)3

✍ Scribed by S. Cottenier; A. Toye; M. Rots; J.C. Spirlet; J.M. Winand

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 180 KB
• Volume: 206-207
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)00500-u

✦ Synopsis

Microscopic information on the magnetic state in U(In 1 xSnx)3 is obtained by perturbed angular correlation (PAC) spectroscopy. For temperatures above the magnetic ordering, the electric quadrupole hyperfine interaction strength follows a linear temperature dependence, while the magnitude reveals a reduced electronic enhancement. In the pseudo-binary compounds we conclude that the valence difference between In and Sn is small. The low temperature PAC spectra for the indium-rich compounds are understood in terms of a two-sites model with temperature dependent relative populations but confirm the triple-k anti-ferromagnetic ordering suggested earlier to reconcile M6ssbauer and neutron scattering data. For the pure UIn 3 case, however, a spin reorientation is observed.