Reentrant Hidden Order at a Metamagnetic Quantum Critical End Point

N. Harrison, M. Jaime, J. A. Mydosh
2003 Physical Review Letters  
Magnetization measurements of URu2Si2 in pulsed magnetic fields of 44 T reveal that the hidden order phase is destroyed before appearing in the form of a re-entrant phase between ~ 36 and 39 T. Evidence for conventional itinerant electron metamagnetism at higher temperatures suggests that the re-entrant phase is created in the vicinity of a quantum critical end point.
doi:10.1103/physrevlett.90.096402 pmid:12689244 fatcat:olwdfwdi3fe6hjmsqwp6xyuimu