A Kondo-like thermoelectric power behaviour of UAsSe ferromagnet

Henkie, Z.; Wojakowski, A.; Wawryk, R.; Kletowski, Z.; Cichorek, T.

doi:10.1016/S0921-4526(01)01337-0

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A Kondo-like thermoelectric power behaviour of UAsSe ferromagnet

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Cichorek, T.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Henkie, Z., Wojakowski, A., Wawryk, R., Kletowski, Z., & Cichorek, T. (2002). A Kondo-like thermoelectric power behaviour of UAsSe ferromagnet. Physica B, 312, 307-308. doi:10.1016/S0921-4526(01)01337-0.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0015-3189-3

Abstract

We have investigated thermoelectric power of some uranium arsenochalcogenides (UAsS and UAs1-xSe1divided byx) and dipnictides (UP2, UP1.7As0.3 and UAs2) that crystallise in tetragonal structure and order ferro- and antiferro- magnetically, respectively. The thermoelectric power, S(T), is strongly anisotropic for all examined systems. While S(T) along c-axis displays a complex behaviour for all the compounds, a broad peak of S(T) along a-axis around 60 K has been observed only for the arsenochalcogenides. We ascribe it to be of a Kondo origin. A dependence of the peak behaviour on x is discussed in the frame of the multi-channel Kondo model. (C) 2002 Elsevier Science B.V. All rights reserved.