Pressure-induced magnetism and hidden order in URu2Si2

P. Chandra, P. Coleman, J. A. Mydosh

Research output: Contribution to journalConference articlepeer-review

24 Scopus citations


We discuss the discovery of pressure-induced antiferromagnetism in URu2Si2, in the context of neutron, NMR and μSR results. The identification of a critical pressure separating mean-field and Ising phase transitions leads us to propose that the system lies close to a bicritical point associated with magnetic and (non-magnetic) hidden order. We note that the recent observation of an isotropic, field-independent component in the silicon NMR line-width implies that the hidden order parameter breaks time-reversal invariance. Relying on simple estimates for the observed local fields, we conclude that URu2Si2 is a strong candidate for an incommensurate orbital antiferromagnet.

Original languageEnglish (US)
Pages (from-to)397-400
Number of pages4
JournalPhysica B: Condensed Matter
StatePublished - Mar 2002
EventInternational Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States
Duration: Aug 6 2002Aug 6 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


  • Antiferromagnetism
  • Hidden order
  • URuSi

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