282 citations · 1.7k across the 44 of their papers we have counts for
44 papers
Competition between Geometrical Frustration and the Kondo Effect in CePdAl Revealed by High-Resolution Magnetization
Yusei Shimizu, Shota Nakamura, Yoichi Ikeda +4
CePdAl is a heavy-fermion compound with a quasi-kagome structure, where geometrical frustration competes with the Kondo effect. Using a high-sensitivity magnetometer, we observe cl…
Impact of the Ce states in the electronic structure of the intermediate-valence superconductor CeIr
Shin-ichi Fujimori, Ikuto Kawasaki, Yukiharu Takeda +10
The electronic structure of the -based superconductor was studied by photoelectron spectroscopy. The energy distribution of the states were re…
Superconducting-Spin Reorientation in Spin-Triplet Multiple Superconducting Phases of UTe2
Katsuki Kinjo, Hiroki Fujibayashi, Hiroki Matsumura +12
Superconducting (SC) state has spin and orbital degrees of freedom, and spin-triplet superconductivity shows multiple SC phases due to the presence of these degrees of freedom. How…
Emergence of Elastic Softening Featuring Ultra-Slow Dynamics Around Magnetic Critical Endpoint in UCoAl
Masahito Yoshizawa, Yusei Shimizu, Yoshiki Nakanishi +4
We conducted an investigation on the temperature and magnetic field dependence of the elastic properties of UCoAl. The longitudinal elastic stiffness, , exhibits significan…
Modulation vector of the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 revealed by high-resolution magnetostriction measurements
Shunichiro Kittaka, Yohei Kono, Kaito Tsunashima +6
The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is an exotic superconducting phase formed by Cooper pairs with finite center-of-mass momentum . On theoretical grounds, the sup…
Low-temperature Magnetic Fluctuations Investigated by Te-NMR on the Uranium-based Superconductor UTe
Hiroki Fujibayashi, Katsuki Kinjo, Genki Nakamine +11
To investigate the static and dynamic magnetic properties on the uranium-based superconductor UTe, we measured the NMR Knight shift and the nuclear spin-lattice relaxatio…
Large Reduction in the -axis Knight Shift on UTe with = 2.1 K
Hiroki Matsumura, Hiroki Fujibayashi, Katsuki Kinjo +11
Spin susceptibility in the superconducting (SC) state was measured in the higher-quality sample of uranium-based superconductor UTe by using Knight-shift measurements for a mag…
Anisotropic field response of specific heat for a ferromagnetic superconductor UCoGe in magnetic fields
Shota Nakamura, Shunichiro Kittaka, Kazushige Machida +4
Magnetic-field-angle-resolved specific heat and magnetization measurements were conducted on a ferromagnetic superconductor UCoGe with remarkable anisotropic upper critical field $…
SmI3: 4f5 honeycomb magnet with spin-orbital entangled Γ7 Kramers doublet
Hajime Ishikawa, Ryosuke Kurihara, Takeshi Yajima +5
We report magnetic properties of a 4f-honeycomb iodide SmI3 made up of edge-shared network of SmI6 octahedra. High temperature magnetic susceptibility indicates Γ7 Kramers doublet…
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…
Magnetovolume Effect on the First-Order Metamagnetic Transition in UTe
Atsushi Miyake, Masaki Gen, Akihiko Ikeda +10
The link between the metamagnetic transition and novel spin-triplet superconductivity of UTe was discussed thermodynamically through magnetostriction measurements in a pulsed-m…
Drastic change in magnetic anisotropy of UTe2 under pressure revealed by 125Te-NMR
Katsuki Kinjo, Hiroki Fujibayashi, Genki Nakamine +11
To investigate the normal-state magnetic properties of UTe2 under pressure, we perform 125Te nuclear magnetic resonance (NMR) measurements up to 2 GPa. Below 1.2 GPa, the b-axis NM…
Superconducting order parameter in UTe determined by Knight shift measurement
Hiroki Fujibayashi, Genki Nakamine, Katsuki Kinjo +11
This study investigates the spin susceptibility in U-based superconductor UTe in the superconducting (SC) state by using Knight shift measurements for a magnetic field alon…
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…
Disappearance of spin glass behavior in ThCr2Si2-type intermetallic PrAu2Si2
D. X. Li, Y. Shimizu, A. Nakamura +5
It is unexpected that a spin-glass transition, which generally occurs only in the system with some form of disorder, was observed in the ThCr2Si2-type compound PrAu2Si2 at a temper…
Enhancement and Discontinuity of Effective Mass through the First-Order Metamagnetic Transition in UTe
Atsushi Miyake, Yusei Shimizu, Yoshiki J. Sato +7
Metamagnetic transitions in the novel spin-triplet superconductor UTe were investigated through the newly developed simultaneous measurements of magnetization and sample temper…
Inhomogeneous Superconducting State Probed by Te NMR on UTe$_2
Genki Nakamine, Katsuki Kinjo, Shunsaku Kitagawa +10
UTe is a recently discovered promising candidate for a spin-triplet superconductor. In contrast to conventional spin-singlet superconductivity, spin-triplet superconductivity p…
Magnetic Properties under Pressure in Novel Spin-Triplet Superconductor UTe2
Dexin Li, Ai Nakamura, Fuminori Honda +8
We report the magnetic susceptibility and the magnetization under pressures up to 1.7GPa above the critical pressure, Pc ~ 1.5GPa, for H // a, b, c-axes in the novel spin triplet s…
Field-Induced Superconductivity near the Superconducting Critical Pressure in UTe2
Dai Aoki, Motoi Kimata, Yoshiki J. Sato +12
We report the magnetoresistance in the novel spin-triplet superconductor UTe2 under pressure close to the critical pressure Pc, where the superconducting phase terminates, for fiel…
Pressure induced multicriticality and electronic instability in quasi-kagome ferromagnet URhSn
Arvind Maurya, Dilip Bhoi, Fuminori Honda +9
We report an unconventional class of pressure induced quantum phase transition, possessing two bicritical points at 6.25 GPa in URhSn. This unique transformation accompanies a Ferm…
Anisotropic response of spin susceptibility in the superconducting state of UTe probed with Te-NMR measurement
Genki Nakamine, Katsuki Kinjo, Shunsaku Kitagawa +10
To investigate spin susceptibility in a superconducting (SC) state, we measured the Te-nuclear magnetic resonance (NMR) Knight shifts at magnetic fields () up to 6.5 T a…
Multiple Superconducting Phases and Unusual Enhancement of the Upper Critical Field in UTe2
Dai Aoki, Fuminori Honda, Georg Knebel +8
We performed AC calorimetry and magnetoresistance measurements under pressure for H || a-axis (easy-magnetization axis) in the novel heavy-fermion superconductor UTe2. Thanks to th…
Anisotropy of the Upper Critical Field in the Heavy-Fermion Superconductor UTe2 under Pressure
Georg Knebel, Motoi Kimata, Michal Vališka +12
We studied the anisotropy of the superconducting upper critical field in the heavy-fermion superconductor UTe under hydrostatic pressure by magnetoresistivity meas…
Spin-Triplet Superconductivity in UTe2 and Ferromagnetic Superconductors
Dai Aoki, Ai Nakamura, Fuminori Honda +13
The spin-triplet state is most likely realized in uranium ferromagnetic superconductors, UGe2, URhGe, UCoGe. The microscopic coexistence of ferromagnetism and superconductivity mea…