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Details of Sample Dependence and Transport Properties of URu2Si2
Tatsuma D. Matsuda, Elena Hassinger, Dai Aoki +8
Resistivity and specific heat measurements were performed in the low carrier unconventional superconductor URu2Si2 on various samples with very different qualities. The superconduc…
Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
R. Okazaki, T. Shibauchi, H. J. Shi +6
A second-order phase transition is characterized by spontaneous symmetry breaking. The nature of the broken symmetry in the so-called "hidden order" phase transition in the heavy f…
Strong Longitudinal Magnetic Fluctuations near Critical End Point in UCoAl: A ^59Co-NMR Study
Hiroki Nohara, Hisashi Kotegawa, Hideki Tou +7
We report ^59Co-NMR measurements in UCoAl where a metamagnetism occurs due to enhancement of ferromagnetism by magnetic field. The metamagnetic transition from a paramagnetic (PM)…
Ferromagnetic Quantum Critical Endpoint in UCoAl
Dai Aoki, Tristan Combier, Valentin Taufour +4
Resistivity and magnetostriction measurements were performed at high magnetic fields and under pressure on UCoAl. At ambient pressure, the 1st order metamagnetic transition at H_m…
Properties of Ferromagnetic Superconductors
Dai Aoki, Frederic Hardy, Atsushi Miyake +3
Thanks to the discovery in the last decade of three uranium ferromagnetic superconductors, UGe2, URhGe and UCoGe, the fascinating aspects of the interplay between the triplet state…
Pressure Evolution of the Magnetic Field induced Ferromagnetic Fluctuation through the Pseudo-Metamagnetism of CeRu2Si2
Dai Aoki, Carley Paulsen, Tatsuma D. Matsuda +7
Resistivity measurements performed under pressure in the paramagnetic ground state of CeRu2Si2 are reported. They demonstrate that the relative change of effective mass through the…