Reentrant hidden order at a metamagnetic quantum critical end point.
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 reentrant phase between approximately 36 and 39 T. Evidence for conventional itinerant electron metamagnetism at higher temperatures suggests that the reentrant phase is created in the vicinity of a quantum critical end point.
Harrison
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National High Magnetic Field Laboratory, LANL, MS-E536, Los Alamos, New Mexico 87545, USA.
Jaime
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Mydosh
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