323 citations · 4.2k across the 126 of their papers we have counts for
15 papers · 1 filter
Complex magnetic phase diagram with a small phase pocket in a three-dimensional frustrated magnet CuInCrS
M. Gen, H. Ishikawa, A. Ikeda +13
Frustrated magnets with a strong spin-lattice coupling can show rich magnetic phases and the associated fascinating phenomena. A promising platform is the breathing pyrochlore magn…
Quantum antiferromagnet bluebellite comprising a maple-leaf lattice made of spin-1/2 Cu ions
Yuya Haraguchi, Akira Matsuo, Koichi Kindo +1
Spin-1/2 maple leaf lattice antiferromagnets are expected to show interesting phenomena originating from frustration effects and quantum fluctuations. We report the hydrothermal sy…
Phase transition in the 5d1 double perovskite Ba2CaReO6 induced by high magnetic field
Hajime Ishikawa, Daigorou Hirai, Akihiko Ikeda +6
Magnetic properties of an antiferromagnetic double perovskite oxide Ba2CaReO6, where Re6+ (5d1) ions with large spin-orbit coupling are arranged on the face-centered-cubic lattice,…
GdV6Sn6: a Multi-carrier Metal with Non-magnetic 3d-electron Kagome Bands and 4f-electron Magnetism
Hajime Ishikawa, Takeshi Yajima, Mitsuaki Kawamura +2
Electronic properties of the single crystal of GdV6Sn6, where non-magnetic V-kagome layers are separated by magnetic Gd-triangular lattice, are investigated. GdV6Sn6 exhibits uniqu…
Emergent anisotropy in the Fulde-Ferrell-Larkin-Ovchinnikov state
Shusaku Imajo, Toshihiro Nomura, Yoshimitsu Kohama +1
Exotic superconductivity is formed by unconventional electron pairing and exhibits various unique properties that cannot be explained by the basic theory. The Fulde-Ferrell-Larkin-…
Physical properties of liquid oxygen under ultrahigh magnetic fields
T. Nomura, A. Ikeda, M. Gen +8
We studied the acoustic properties of liquid oxygen up to 90 T by means of ultrasound measurements. We observed a monotonic decrease of the sound velocity and an asymptotic increas…
Revised phase diagram of the high- cuprate superconductor Pb-doped BiSrCaCuO revealed by anisotropic transport measurements
Keiichi Harada, Yuki Teramoto, Tomohiro Usui +9
Although phase diagrams can be leveraged to investigate high transition temperature (high-) superconductivity, the issue has not been discussed thoroughly. In this study, we e…
Spin-gap formation due to spin-Peierls instability in -orbital-ordered NaO
Mizuki Miyajima, Fahmi Astuti, Takahito Fukuda +11
We have investigated the low-temperature magnetism of sodium superoxide (NaO), in which spin, orbital, and lattice degrees of freedom are closely entangled. The magnetic susc…
Extraordinary -Electron Superconductivity Emerging from a Quantum Spin Liquid
Shusaku Imajo, Shiori Sugiura, Hiroki Akutsu +6
Quantum spin liquids (QSLs), in which spins are highly entangled, have been considered a groundwork for generating exotic superconductivity.Despite numerous efforts, superconductiv…
Thermodynamic evidence for the formation of a Fulde-Ferrell-Larkin-Ovchinnikov phase in the organic superconductor -(BETS)GaCl
Shusaku Imajo, Takuya Kobayashi, Atsushi Kawamoto +2
In this work, the thermodynamic properties of the organic superconductor -(BETS)GaCl are investigated to study a high-field superconducting state known as the putative F…
Quantum transport of topological spin solitonsin a one-dimensional organic ferroelectric
Shusaku Imajo, Atsushi Miyake, Ryosuke Kurihara +4
We report the dielectric, magnetic, and ultrasonic properties of a one-dimensional organic salt TTF-QBrI. These indicate that TTF-QBrI shows a ferroelectric spin-Peierls (F…
Revealing three-dimensional quantum criticality by Sr-substitution in Han Purple
Stephan Allenspach, Pascal Puphal, Joosep Link +20
Classical and quantum phase transitions (QPTs), with their accompanying concepts of criticality and universality, are a cornerstone of statistical thermodynamics. An exemplary cont…
Symmetry change of -wave superconductivity in -type organic superconductors
Shusaku Imajo, Koichi Kindo, Yasuhiro Nakazawa
Magnetic-field-angle-resolved heat capacity of dimer-Mott organic superconductors -(BEDT-TTF) is reported. Temperature and field dependence of heat capacity indicates tha…
Normal state specific heat in the cuprates LaSrCuO and BiSrLaCuO near the critical point of the pseudogap phase
C. Girod, D. LeBoeuf, A. Demuer +17
The specific heat of the cuprate superconductors LaSrCuO and BiSrLaCuO was measured at low temperature (down to ), fo…
Experimental determination of the magnetic interactions of frustrated Cairo pentagon lattice materials
Manh Duc Le, Elisa M. Wheeler, Jaehong Jeong +14
We present inelastic neutron scattering measurements of the Cairo pentagon lattice magnets BiFeO and BiFeOF, supported by high field magnetisation measur…