112 citations · 1.1k across the 41 of their papers we have counts for
17 papers · 1 filter
Dramatic elastic response at the critical end point in UTe
Michal Vališka, Tetiana Haidamak, Andrej Cabala +10
The first-order transition line in the \textit{H-T} phase diagram of itinerant electron metamagnets terminates at the critical end point-analogous to the critical point on the gas-…
Ferromagnetic Crossover within the Ferromagnetic Order of UTe
Petr Opletal, Hironori Sakai, Yoshinori Haga +4
We investigate the physical properties of a single crystal of uranium telluride UTe. We have confirmed that UTe crystallizes in the hexagonal structure wi…
First Observation of de Haas-van Alphen Effect and Fermi Surfaces in Unconventional Superconductor UTe2
Dai Aoki, Hironori Sakai, Petr Opletal +11
We report the first observation of the de Haas-van Alphen (dHvA) effect in the novel spin-triplet superconductor UTe2 using high quality single crystals with the high residual resi…
Slow Electronic Dynamics in the Paramagnetic State of UTe
Yo Tokunaga, Hironori Sakai, Shinsaku Kambe +13
Te NMR experiments in field () applied along the easy magnetization axis (the -axis) revealed slow electronic dynamics developing in the paramagnetic state of UTe…
Field-angular Dependence of Pairing Interaction in URhGe: Comparison with UCoGe
Yo Tokunaga, Dai Aoki, Hadrien Mayaffre +8
The field-angular dependence of Co-NMR spin-lattice relaxation rate 1/T1 has been measured for a 10% Co-doped single crystal of URhGe. The experiment revealed that spin fluctuation…
Novel universality class for the ferromagnetic transition in the low carrier concentration systems UTeS and USeS exhibiting large negative magnetoresistance
Naoyuki Tateiwa, Yoshinori Haga, Hironori Sakai +1
We report the novel critical behavior of magnetization in low carrier concentration systems UTeS and USeS that exhibit the large negative magnetoresistance around the ferromagnetic…
Orbitally defined field-induced electronic state in a Kondo lattice
G. G. Lesseux, H. Sakai, T. Hattori +7
CeRhIn is a Kondo-lattice prototype in which a magnetic field B 30 T induces an abrupt Fermi-surface (FS) reconstruction and pronounced in-plane electrica…
125Te-NMR Study on a Single Crystal of Heavy Fermion Superconductor UTe2
Yo Tokunaga, Hironori Sakai, Shinsaku Kambe +11
We report 125Te-NMR studies on a newly discovered heavy fermion superconductor UTe2. Using a single crystal, we have measured the 125Te-NMR Knight shift K and spin-lattice relaxati…
Pu nuclear magnetic resonance in the candidate topological insulator PuB
A. P. Dioguardi, H. Yasuoka, S. M. Thomas +9
We present a detailed nuclear magnetic resonance (NMR) study of Pu in bulk and powdered single-crystal plutonium tetraboride (PuB), which has recently been investigat…
Phenomenological approach to study the degree of the itinerancy of the electrons in actinide ferromagnets with spin fluctuation theory
Naoyuki Tateiwa, Jiri Pospisil, Yoshinori Haga +3
Actinide compounds with 5f electrons have been attracting much attention because of their interesting magnetic and electronic properties such as heavy fermion state, unconventional…
Investigation of the commensurate magnetic structure in heavy fermion CePt2In7 using magnetic resonant X-ray diffraction
Nicolas Gauthier, Didier Wermeille, Nicola Casati +4
We investigated the magnetic structure of the heavy fermion compound CePtIn below K using magnetic resonant X-ray diffraction at ambient pressure. The magnet…
Itinerant ferromagnetism in actinide 5f electrons system: Phenomenological analysis with spin fluctuation theory
Naoyuki Tateiwa, Jiri Pospisil, Yoshinori Haga +3
We have carried out an analysis of magnetic data in 69 uranium, 7 neptunium and 4 plutonium ferromagnets with the spin fluctuation theory developed by Takahashi (Y. Takahashi, J. P…
Anisotropic spin fluctuations and superconductivity in "115'' heavy fermion compounds: 59Co NMR study in PuCoGa5
S. -H. Baek, H. Sakai, E. D. Bauer +4
We report results of Co nuclear magnetic resonance measurements on a single crystal of superconducting PuCoGa5 in its normal state. The nuclear spin-lattice relaxation rates…
Crystal field effects and quadrupole fluctuations in CeAuSb detected by Sb NQR
S. -H. Baek, H. Sakai, H. Lee +3
We report Sb NQR studies on single crystals of the narrow gap semiconductor Ce3Au3Sb4. The temperature dependence of the nuclear quadrupole frequency (), as well a…
U nuclear relaxation rates in an itinerant antiferromagnet USb
S. -H. Baek, N. J. Curro, H. Sakai +3
U nuclear spin-lattice () and spin-spin () relaxation rates in the itinerant antiferromagnet USb are reported as a function of temperature in zero f…
Magnetic state dynamics in itinerant paramagnet UM3B2 (M= Co, Ir) probed by 11B NMR
T. Fujimoto, H. Sakai, Y. Tokunaga +7
We have carried out the B NMR measurement on the itinerant paramagnetic systems UB ( Co, Ir) to investigate the low-dimensional characteristics of the …
Superconductivity in a pyrochlore oxide Cd2Re2O7
H. Sakai, K. Yoshimura, H. Ohno +6
We make the first report that a metallic pyrochlore oxide \Cd2Re2O7, exhibits type II superconductivity at 1.1 K. The pyrochlore oxide is known to be a geometrical frustrated syste…