High pressure transport study of non-Fermi liquid behaviour in U2Pt2In and U3Ni3Sn4

A De Visser, Pedro Estrela, T Naka

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

The strongly correlated metals U2Pt2In and U3Ni3Sn4 show pronounced non-Fermi liquid (NFL) phenomena at ambient pressure. Here we review single-crystal electrical resistivity measurements under pressure (p less than or equal to 1.8 GPa) conducted to investigate the stability of the NFL phase. For tetragonal U2Pt2In (l parallel to a) we observe a rapid recovery of the Fermi-liquid T-2-term with pressure. The Fermi-liquid temperature varies as T-FL similar to p-p(c), where p(c)= 0 is a critical pressure. The analysis within the magnetotransport theory of Rosch provides evidence for the location of U2Pt2In at a p= 0 antiferromagnetic quantum critical point (QCP). In the case of cubic U3Ni3Sn4 we find T-FL similar to (p-p(c))(1/2). The analysis provides evidence for an antiferromagnetic QCP in U3Ni3Sn4 at a negative pressure p(c)= -0.04+/-0.04 GPa.
Original languageEnglish
Title of host publicationPhysical Phenomena at High Magnetic Fields IV
EditorsG Boebinger, Z Fisk, L P Gor'kov, A Lacerda, J R Schrieffer
PublisherWorld Scientific
Pages88-93
Number of pages6
ISBN (Print)9789810248963
Publication statusPublished - Jul 2002
Event4th Conference on Physical Phenomena at High Magnetic Filds - Santa Fe, New Mexico
Duration: 1 Jul 2002 → …

Conference

Conference4th Conference on Physical Phenomena at High Magnetic Filds
CitySanta Fe, New Mexico
Period1/07/02 → …

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  • Cite this

    De Visser, A., Estrela, P., & Naka, T. (2002). High pressure transport study of non-Fermi liquid behaviour in U2Pt2In and U3Ni3Sn4. In G. Boebinger, Z. Fisk, L. P. Gor'kov, A. Lacerda, & J. R. Schrieffer (Eds.), Physical Phenomena at High Magnetic Fields IV (pp. 88-93). World Scientific.