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The Resource Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2, by Ryuji Okazaki, (electronic resource)

Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2, by Ryuji Okazaki, (electronic resource)

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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 2nematic3 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
Language
eng
Work
Publication
Extent
XIII, 102 p. 71 illus.
Contents
  • 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
Isbn
9784431545927
Link
http://libproxy.rpi.edu/login?url=http://dx.doi.org/10.1007/978-4-431-54592-7
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Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2
Title
Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2
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by Ryuji Okazaki
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Contributor
Author
Subject
Language
eng
Summary
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 2nematic3 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
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Springer Theses, Recognizing Outstanding Ph.D. Research,
Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2, by Ryuji Okazaki, (electronic resource)
Label
Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2, by Ryuji Okazaki, (electronic resource)
Link
http://libproxy.rpi.edu/login?url=http://dx.doi.org/10.1007/978-4-431-54592-7
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mixed
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online resource
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cr
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Contents
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
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{'f': 'http://opac.lib.rpi.edu/record=b3455200'}
Extent
XIII, 102 p. 71 illus.
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electronic
Isbn
9784431545927
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