Field-induced non-Fermi-liquid resistivity of stoichiometric YbAgGe single crystals

Simple item page
dc.creatorNiklowitz, P. G.
dc.creatorKnebel, G.
dc.creatorFlouquet, J.
dc.creatorBud'ko, S. L.
dc.creatorCanfield, P. C.
dc.date2005-07-08
dc.date2006-02-01
dc.date.accessioned2026-07-07T06:41:18Z
dc.date.available2026-07-07T06:41:18Z
dc.descriptionWe 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.
dc.description11 pages, 12 figures; revised version; accepted for publication in Phys.Rev.B
dc.identifierhttps://arxiv.org/abs/cond-mat/0507211
dc.identifierhttp://arxiv.org/abs/cond-mat/0507211
dc.identifierPhys. Rev. B 73 (2006) 125101
dc.identifierdoi:10.1103/PhysRevB.73.125101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101621
dc.subjectStrongly Correlated Electrons
dc.titleField-induced non-Fermi-liquid resistivity of stoichiometric YbAgGe single crystals
dc.typetext

Files

Collections

arXiv