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EDP Sciences, The European Physical Journal B, 4(23), p. 449-454

DOI: 10.1007/s100510170036

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High-pressure study of the non-Fermi liquid material U 2 Pt 2 In

Journal article published in 2001 by P. Estrela, A. de Visser, T. Naka, F. R. de Boer, L. C. J. Pereira ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The effect Of hydrostatic pressure. (p less than or equal to 1.8 GPa) on the non-Fermi liquid statu Of U2Pt2In is investigated by electrical resistivity measurements in the temperature interval 0.3-300 K. The experiments were carried out on single-crystals with the current along (I \ \ c) and perpendicular (I \ \ a) to the tetragonal axis. The pressure effect is strongly current-directinn dependent,. For I \ \ a we observe a rapid recovery of the Fermi-liquid T-2-term with pressure, A comparison of the data with the magnetotransport theory of Rosch provides evidence for the location Of U2Pt2In at an antiferromagnetic quantum critical point. For I \ \ c the resistivity increases under pressure, indicating the enhancement of an additional scattering mechanism.