Hastatic order in the heavy-fermion compound URu2Si2.

Abstract

The development of collective long-range order by means of phase transitions occurs by the spontaneous breaking of fundamental symmetries. Magnetism is a consequence of broken time-reversal symmetry, whereas superfluidity results from broken gauge invariance. The broken symmetry that develops below 17.5 kelvin in the heavy-fermion compound URu(2)Si(2) has… (More)
DOI: 10.1038/nature11820

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