03925nam 22007095 450 991043812440332120200706172008.04-431-54592-110.1007/978-4-431-54592-7(CKB)3710000000031329(EBL)1593280(OCoLC)864877536(SSID)ssj0001067520(PQKBManifestationID)11669873(PQKBTitleCode)TC0001067520(PQKBWorkID)11079713(PQKB)11461215(DE-He213)978-4-431-54592-7(MiAaPQ)EBC1593280(PPN)17612635X(EXLCZ)99371000000003132920131128d2013 u| 0engur|n|---|||||txtccrHidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2 /by Ryuji Okazaki1st ed. 2013.Tokyo :Springer Japan :Imprint: Springer,2013.1 online resource (114 p.)Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053Description based upon print version of record.4-431-54591-3 Includes bibliographical references.Introduction -- Heavy-Fermion Superconductor URu2Si2 -- Magnetic torque Study on the Hidden-Order Phase -- Lower Critical Field Study on the Superconducting Phase -- Vortex Lattice Melting Transition -- Conclusion.In this thesis, the author investigates hidden-order phase transition at T0 = 17.5 K in the heavy-fermion URu2Si2. The four-fold rotational symmetry breaking in the hidden order phase, which imposes a strong constraint on the theoretical model, is observed through the magnetic torque measurement. The translationally invariant phase with broken rotational symmetry is interpreted as meaning that the hidden-order phase is an electronic “nematic” phase. The observation of such nematicity in URu2Si2 indicates a ubiquitous nature among the strongly correlated electron systems. The author also studies the superconducting state of URu2Si2 below Tc = 1.4 K, which coexists with the hidden-order phase. A peculiar vortex penetration in the superconducting state is found, which may be related to the rotational symmetry breaking in the hidden-order phase. The author also identifies a vortex lattice melting transition. This transport study provides essential clues to the underlying issue of quasiparticle dynamics as to whether a quasiparticle Bloch state is realized in the periodic vortex lattice.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053SuperconductivitySuperconductorsLow temperaturesLow temperaturesOptical materialsElectronicsMaterialsStrongly Correlated Systems, Superconductivityhttps://scigraph.springernature.com/ontologies/product-market-codes/P25064Low Temperature Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P25130Optical and Electronic Materialshttps://scigraph.springernature.com/ontologies/product-market-codes/Z12000Superconductivity.Superconductors.Low temperatures.Low temperatures.Optical materials.ElectronicsMaterials.Strongly Correlated Systems, Superconductivity.Low Temperature Physics.Optical and Electronic Materials.530.41Okazaki Ryujiauthttp://id.loc.gov/vocabulary/relators/aut906918BOOK9910438124403321Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si22028757UNINA