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Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2 [[electronic resource] /] / by Ryuji Okazaki



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Autore: Okazaki Ryuji Visualizza persona
Titolo: Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2 [[electronic resource] /] / by Ryuji Okazaki Visualizza cluster
Pubblicazione: Tokyo : , : Springer Japan : , : Imprint : Springer, , 2013
Edizione: 1st ed. 2013.
Descrizione fisica: 1 online resource (114 p.)
Disciplina: 530.41
Soggetto topico: Superconductivity
Superconductors
Low temperature physics
Low temperatures
Optical materials
Electronic materials
Strongly Correlated Systems, Superconductivity
Low Temperature Physics
Optical and Electronic Materials
Note generali: Description based upon print version of record.
Nota di bibliografia: Includes bibliographical references.
Nota di contenuto: 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.
Sommario/riassunto: 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.
Titolo autorizzato: Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2  Visualizza cluster
ISBN: 4-431-54592-1
Formato: Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione: Inglese
Record Nr.: 9910438124403321
Lo trovi qui: Univ. Federico II
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Serie: Springer Theses, Recognizing Outstanding Ph.D. Research, . 2190-5053