202 citations · 499 across the 19 of their papers we have counts for
19 papers
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…
Gapless spin excitations in a quantum spin liquid state of S=1/2 perfect kagome antiferromagnet
S. Suetsugu, T. Asaba, S. Ikemori +8
Quantum spin liquids (QSLs) represent an exotic quantum many-body state characterized by the suppression of long-range magnetic order due to strong quantum fluctuations. The kagome…
Evidence for a finite-momentum Cooper pair in tricolor -wave superconducting superlattices
T. Asaba, M. Naritsuka, H. Asaeda +9
Fermionic superfluidity with a nontrivial Cooper-pairing, beyond the conventional Bardeen-Cooper-Schrieffer state, is a captivating field of study in quantum many-body systems. In…
Imaging quantum interference in a monolayer Kitaev quantum spin liquid candidate
Y. Kohsaka, S. Akutagawa, S. Omachi +16
Single atomic defects are prominent windows to look into host quantum states because collective responses from the host states emerge as localized states around the defects. Friede…
Two-step growth of high-quality single crystals of the Kitaev magnet -RuCl
R. Namba, K. Imamura, R. Ishioka +14
The layered honeycomb magnet -RuCl is the most promising candidate for a Kitaev quantum spin liquid (KQSL) that can host charge-neutral Majorana fermions. Recent studies hav…
Emergent spin-gapped magnetization plateaus in a spin-1/2 perfect kagome antiferromagnet
S. Suetsugu, T. Asaba, Y. Kasahara +7
The two-dimensional (2D) spin-1/2 kagome Heisenberg antiferromagnet is believed to host quantum spin liquid (QSL) states with no magnetic order, but its ground state remains largel…
Evidence for an odd-parity nematic phase above the charge density wave transition in kagome metal CsVSb
T. Asaba, A. Onishi, Y. Kageyama +16
The quest for fascinating quantum states arising from the interplay between correlation, frustration, and topology is at the forefront of condensed-matter physics. Recently discove…
Majorana-fermion origin of the planar thermal Hall effect in the Kitaev magnet -RuCl
K. Imamura, S. Suetsugu, Y. Mizukami +11
The field-induced quantum disordered state of layered honeycomb magnet -RuCl is a prime candidate for Kitaev spin liquids hosting Majorana fermions and non-Abelian anyons. R…
Exotic heavy fermion superconductivity in atomically thin CeCoIn films
L. Peng, M. Naritsuka, S. Akutagawa +7
We report an {\it in-situ} scanning tunneling microscopy study of atomically thin films of CeCoIn, a -wave heavy-fermion superconductor. Both hybridization and superconducti…
Evidence for the first-order topological phase transition in a Kitaev spin liquid candidate -RuCl
S. Suetsugu, Y. Ukai, M. Shimomura +9
The Kitaev quantum spin liquid (QSL) on the two-dimensional honeycomb lattice epitomizes an entangled topological state, where the spins fractionalize into Majorana fermions. This…
Quantized and unquantized thermal Hall conductance of Kitaev spin-liquid candidate -RuCl
Y. Kasahara, S. Suetsugu, T. Asaba +5
Despite extensive investigations, a topological state that hosts Majorana edge modes in the magnetic field-induced quantum disordered state of the Kitaev candidate material -RuC…
Topological surface conduction in Kondo insulator YbB
Y. Sato, Z. Xiang, Y. Kasahara +10
Kondo insulators have recently aroused great interest because they are promising materials that host a topological insulator state caused by the strong electron interactions. Moreo…
Intrinsic suppression of topological thermal Hall effect in an exactly solvable quantum magnet
S. Suetsugu, T. Yokoi, K. Totsuka +7
In contrast to electron (fermion) systems, topological phases of charge neutral bosons have been poorly understood despite recent extensive research on insulating magnets. The most…
Universal scaling of the specific heat in quantum kagome antiferromagnet herbertsmithite
H. Murayama, T. Tominaga, T. Asaba +9
Despite tremendous investigations, a quantum spin liquid state realized in spin-1/2 kagome Heisenberg antiferromagnet remains largely elusive. In herbertsmithite ZnCu(OH)Cl…
Charge neutral fermions and magnetic field driven instability in insulating YbIrSi
Y. Sato, S. Suetsugu, T. Tominaga +12
Materials where localized magnetic moments are coupled to itinerant electrons, the so-called Kondo lattice materials, provide a very rich backdrop for strong electron correlations.…
Presence and absence of itinerant gapless excitations in the quantum spin liquid candidate EtMeSb[Pd(dmit)]
M. Yamashita, Y. Sato, T. Tominaga +6
EtMeSb[Pd(dmit)], an organic Mott insulator with nearly isotropic triangular lattice, is a candidate material for a quantum spin liquid, in which the zero-point fluctua…
Diagonal Nematicity in the Pseudogap Phase of HgBaCuO
H. Murayama, Y. Sato, R. Kurihara +11
The pseudogap phenomenon in cuprates is the most mysterious puzzle in the research of high-temperature superconductivity. In particular, whether the pseudogap is associated with a…
Full-gap superconductivity robust against disorder in heavy-fermion CeCu2Si2
T. Takenaka, Y. Mizukami, J. A. Wilcox +9
A key aspect of unconventional pairing by the antiferromagnetic spin-fluctuation mechanism is that the superconducting energy gap must have opposite sign on different parts of the…
Exotic Superconducting Properties in the Electron-Hole Compensated Heavy Fermion `Semimetal' URu2Si2
Y. Kasahara, T. Iwasawa, H. Shishido +7
We show that the charge and thermal transport measurements on ultraclean crystals of URu2Si2 reveal a number of unprecedented superconducting properties. The uniqueness is best hig…