ISSN:
1434-6036
Keywords:
PACS. 71.10.Hf Non-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systems – 71.27.+a Strongly correlated electron systems; heavy fermions – 72.15.-v Electronic conduction in metals and alloys
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: The effect of hydrostatic pressure ( p ? 1.8 GPa) on the non-Fermi liquid state 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-direction dependent. For I || a we observe a rapid recovery of the Fermi-liquid T2-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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100510170036
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