Is the low temperature thermoelectric power behaviour an evidence for the multi-channel Kondo effect in UAs1-xSe1+x?

Authors
Henkie, Z Wojakowski, A Wawryk, R Kletowski, Z Cichorex, T
Citation
Z. Henkie et al., Is the low temperature thermoelectric power behaviour an evidence for the multi-channel Kondo effect in UAs1-xSe1+x?, ACT PHY P B, 32(10), 2001, pp. 3501-3506
Citations number
14
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
32
Issue
10
Year of publication
2001
Pages
3501 - 3506
Database
ISI
SICI code
0587-4254(200110)32:10<3501:ITLTTP>2.0.ZU;2-6
Abstract
We have investigated the anisotropy and off-stoichiometry effects on the th ermoelectric power S(T) of uranium dipnictides - UP1.7As0.3 and UAs2 and ar senoselenide - UAs1-xSe1+x. These two groups of compounds have tetragonal P bFCl-type structure and order at low temperatures anti- or ferromagneticall y, respectively. The S(T) curves are strongly anisotropic for all the exami ned systems. The a-axis thermopower of the ferromagnetic UAs1-xSe1+x. syste m shows a spectacular dependence of the shape of S(T) curve on x. This beha viour is discussed in the frame of the multi-channel Kondo model.