Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-09-24
J. Phys. Soc. Jpn., Vol.80, No.2, p.024710 (2011)
Physics
Condensed Matter
Strongly Correlated Electrons
17 pages, 7 figures accepted for publication in JPSJ
Scientific paper
10.1143/JPSJ.80.024710
We report detailed very low temperature resistivity measurements on the heavy fermion compounds Ce_{1-x}La_{x}CoIn5 (x=0 and x=0.01), with current applied in two crystallographic directions [100] (basal plane) and [001] (perpendicular to the basal plane) under magnetic field applied in the [001] or [011] direction. We found a Fermi liquid (\rho \propto T^{2}) ground state, in all cases, for fields above the superconducting upper critical field. We discuss the possible location of a field induced quantum critical point with respect to Hc2(0), and compare our measurements with the previous reports in order to give a clear picture of the experimental status on this long debated issue.
Aoki Dai
Brison Jean-Pascal
Howald Ludovic
Knebel Georg
Lapertot Gerard
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