High-pressure study of the non-Fermi liquid material U2Pt2In

Pedro Estrela, A de Visser, T Naka, F R de Boer, L C J Pereira

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4 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)449-454
Number of pages6
JournalEuropean Physical Journal B : Condensed MAtter and Complex Systems
Volume23
Issue number4
Publication statusPublished - 2001

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