TY  - GEN
TY  - GEN
T1  - Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2
T2  - Springer Theses, Recognizing Outstanding Ph.D. Research,
A1  - Okazaki, Ryuji.
LA  - English
PP  - Tokyo
PB  - Springer Japan : Imprint: Springer
YR  - 2013
ED  - 1st ed. 2013.
UL  - http://discoverylib.upm.edu.my/discovery/Record/978-4-431-54592-7
AB  - 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.
OP  - 102
CN  - QC611.9-611.98
SN  - 9784431545927
KW  - Superconductivity.
KW  - Superconductors.
KW  - Low temperature physics.
KW  - Low temperatures.
KW  - Optical materials.
KW  - Electronic materials.
KW  - Strongly Correlated Systems, Superconductivity.
KW  - Low Temperature Physics.
KW  - Optical and Electronic Materials.
ER  -