Possible Phase Transition Deep Inside the Hidden Order Phase of Ultraclean URu2Si2

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dc.creatorShishido, H.
dc.creatorHashimoto, K.
dc.creatorShibauchi, T.
dc.creatorSasaki, T.
dc.creatorOizumi, H.
dc.creatorKobayashi, N.
dc.creatorTakamasu, T.
dc.creatorTakehana, K.
dc.creatorImanaka, Y.
dc.creatorMatsuda, T. D.
dc.creatorHaga, Y.
dc.creatorOnuki, Y.
dc.creatorMatsuda, Y.
dc.date2009-03-23
dc.date.accessioned2026-07-07T13:05:22Z
dc.date.available2026-07-07T13:05:22Z
dc.descriptionTo elucidate the underlying nature of the hidden order (HO) state in heavy-fermion compound URu2Si2, we measure electrical transport properties of ultraclean crystals in a high field/low temperature regime. Unlike previous studies, the present system with much less impurity scattering resolves a distinct anomaly of the Hall resistivity at H*=22.5 T well below the destruction field of the HO phase ~36 T. In addition, a novel quantum oscillation appears above a magnetic field slightly below H*. These results indicate an abrupt reconstruction of the Fermi surface, which implies a possible phase transition well within the HO phase caused by a band-dependent destruction of the HO parameter. The present results definitely indicate that the HO transition should be described by an itinerant electron picture.
dc.description4 pages, 4 figures, accepted for publication in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/0903.3821
dc.identifierhttp://arxiv.org/abs/0903.3821
dc.identifierPhys. Rev. Lett. 102, 156403 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.156403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/227468
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titlePossible Phase Transition Deep Inside the Hidden Order Phase of Ultraclean URu2Si2
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