Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2001-10-29
Int. J. Mod. Phys. B 16 (2002) 2998-3003.
Physics
Condensed Matter
Strongly Correlated Electrons
6 pages (4 figures); to appear in Proc. of Int. Conf. PPHMF-IV (20-25 Oct. 2001, Santa Fe)
Scientific paper
10.1142/S0217979202013420
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 <= 1.8 GPa) conducted to investigate the stability of the NFL phase. For tetragonal U2Pt2In (I||a) we observe a rapid recovery of the Fermi-liquid T^2-term with pressure. The Fermi-liquid temperature varies as T_FL ~ 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 zero pressure antiferromagnetic quantum critical point (QCP). In the case of cubic U3Ni3Sn4 we find T_FL ~ (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.
Estrela P.
Naka Takashi
Visser Anne de
No associations
LandOfFree
High pressure transport study of non-Fermi liquid behaviour in U2Pt2In and U3Ni3Sn4 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High pressure transport study of non-Fermi liquid behaviour in U2Pt2In and U3Ni3Sn4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High pressure transport study of non-Fermi liquid behaviour in U2Pt2In and U3Ni3Sn4 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-73000