In this book, the author investigates hidden-order phase transition at T0 = 17.5 K in the heavy-fermion URu2Si2. The author also studies the superconducting state of URu2Si2 below Tc = 1.4 K, which coexists with the hidden-order phase.

Describes precise magnetic torque measurement using micro cantilever and local magnetization measurement using micro-Hall array Investigates the symmetry breaking in the hidden-order phase of URu2Si2 and vortex state in the superconducting phase Covers observation of the vortex lattice melting transition in ultraclean URu2Si2 single crystals at sub-Kelvin temperatures Nominated as an outstanding contribution by Kyoto University's Physics Department in 2013

Autorentext
Dr.Ryuji Okazaki
Department of Physics, Nagoya University,
Chikusa, Nagoya 464-8602, Japan.

Inhalt
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.