Linear Field Dependence of the Normal-State In-Plane Magnetoresistance of Sr2RuO4
arXiv:cond-mat/9908280 · doi:10.1103/PhysRevB.60.10418
Abstract
The transverse and longitudinal in-plane magnetoresistances in the normal state of superconducting Sr2RuO4 single crystals have been measured. At low temperatures, both of them were found to be positive with a linear magnetic-field dependence above a threshold field, a result not expected from electronic band theory. We argue that such behavior is a manifestation of a novel coherent state characterized by a spin pseudo gap in the quasi-particle excitation spectrum in Sr2RuO4.
4 pages + 5 figures