66 citations · 94 across the 11 of their papers we have counts for
11 papers
A continuous confinement-deconfinement transition in a triangular quantum magnet
Suguru Hosoi, Sejun Park, Michihiro Hirata +13
A continuous transition between phases hosting distinct excitations---bosonic magnons versus fermionic spinons---is a long-sought phenomenon in quantum magnetism, analogous to the…
High-field fate of the Kitaev quantum spin liquid in -RuCl
K. Imamura, R. Ohno, Y. C. Tsuzuki +15
Kitaev quantum spin liquids (KQSLs) host fractionalized excitations described by itinerant Majorana quasiparticles and gapped fluxes (visons), providing a platform for emerge…
Revealing nonvolatile behaviors in magneto-thermal switching using microstructure-controlled superconducting composites
Keigo Ito, Yui Sakamoto, Hossein Sepehri-Amin +12
Thermal conductivity in a conductor changes by the application of an external magnetic field, which functions as a magneto-thermal switch. For superconductors, a large magneto-ther…
Pseudo Point Nodal Superconducting Gap in Spin-Triplet UTe
S. Hosoi, K. Imamura, M. M. Bordelon +7
The unconventional superconductor UTe represents a rare example of spin-triplet pairing with potentially topologically protected quantum states. However, conflicting reports on…
Impact of charge-density-wave pattern on the superconducting gap in V-based kagome superconductors
T. Nagashima, K. Ishihara, Y. Yamakawa +12
Kagome metals VSb ( K, Rb, Cs) provide a compelling platform to explore the interplay between superconductivity (SC) and charge-density-wave (CDW) orders. While dist…
Bulk excitations in ultraclean -RuCl: Quantitative evidence for Majorana dispersions in a Kitaev quantum spin liquid
Kumpei Imamura, Ryuichi Namba, Riku Ishioka +6
The spin-orbit coupled Mott insulator -RuCl has emerged as a prime candidate for realizing the Kitaev quantum spin liquid (KQSL), characterized by Majorana quasiparticles, w…
Topology meets time-reversal symmetry breaking in FeSeTe superconductor
M. Roppongi, Y. Cai, K. Ogawa +21
Time-reversal symmetry breaking (TRSB) in magnetic topological insulators induces a Dirac gap in the topological surface state (TSS), leading to exotic phenomena such as the quantu…
Field-Angle-Resolved Specific Heat in NaCoTeO: Evidence against Kitaev Quantum Spin Liquid
Shengjie Fang, Kumpei Imamura, Yuta Mizukami +4
Kitaev quantum spin liquids (KSLs) in layered honeycomb magnets are known to host Majorana quasiparticles, whose excitations depend strongly on the direction of the applied magneti…
Magnetothermal transport in ultraclean single crystals of Kitaev magnet -RuCl
Y. Xing, R. Namba, K. Imamura +7
The layered honeycomb magnet -RuCl has emerged as a promising candidate for realizing a Kitaev quantum spin liquid. Previous studies have reported oscillation-like anomalies…
Lifting of gap nodes by disorder in ultranodal superconductor candidate FeSe1-xSx
T. Nagashima, K. Ishihara, K. Imamura +8
The observation of time-reversal symmetry breaking and large residual density of states in tetragonal FeSeS suggests a novel type of ultranodal superconducting state wi…
Chiral superconductivity in UTe2 probed by anisotropic low-energy excitations
K. Ishihara, M. Roppongi, M. Kobayashi +5
Chiral spin-triplet superconductivity is a topologically nontrivial pairing state with broken time-reversal symmetry, which can host Majorana quasiparticles. The recently discovere…