Magnetic-field-induced quantum critical point and competing order parameters in URu2Si2

Phys Rev Lett. 2003 Dec 19;91(25):256401. doi: 10.1103/PhysRevLett.91.256401. Epub 2003 Dec 15.

Abstract

A comprehensive transport study, as a function of temperature and continuous magnetic fields of up to 45 T, reveals that URu2Si2 possesses all the essential hallmarks of quantum criticality at fields around 37+/-1 T. The formation of multiple phases at low temperatures at and around the quantum critical point suggests the existence of competing order parameters.