Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-07-08
Phys. Rev. B 73 (2006) 125101
Physics
Condensed Matter
Strongly Correlated Electrons
11 pages, 12 figures; revised version; accepted for publication in Phys.Rev.B
Scientific paper
10.1103/PhysRevB.73.125101
We have investigated hexagonal YbAgGe down to 70 mK by measuring the magnetic-field and temperature dependence of the resistivity rho of single crystals in fields up to 14 T. Our results extend the H-T phase diagram to the lowest temperatures for H applied in the basal plane and along the c-axis. In particular, critical fields for the suppression of several magnetic phases are determined. The temperature dependence of rho(T) is unusual: whereas at low H, rho(T) reveals a temperature exponent n>=2, we find 1<=n<1.5 and strong enhancement of the temperature dependence of rho(T) close to and beyond the highest critical field for each field direction. For H applied in the basal plane, at high fields a conventional T^2 dependence of rho(T) is reached above 10 T accompanied by an approach to saturation of a strong drop in the residual resistivity. YbAgGe appears to be one of few Yb-based stoichiometric systems, where quantum-critical behaviour may be induced by a magnetic field.
Bud'ko Sergey L.
Canfield Paul. C.
Flouquet Jacques
Knebel Georg
Niklowitz P. G.
No associations
LandOfFree
Field-induced non-Fermi-liquid resistivity of stoichiometric YbAgGe single crystals 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 Field-induced non-Fermi-liquid resistivity of stoichiometric YbAgGe single crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field-induced non-Fermi-liquid resistivity of stoichiometric YbAgGe single crystals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-374744