activity
20242026
most citedTwo-step growth of high-quality single crystals of the Kitaev magnet -RuCl

12 citations · 43 across the 9 of their papers we have counts for

collaborators

9 papers

cond-mat.str-el2026

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…

cond-mat.supr-con2025★ 4 cited

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…

cond-mat.str-el2025★ 4 cited

Impact of tiny Fermi pockets with extremely high mobility on the Hall anomaly in the kagome metal CsVSb

S. Liu, M. Roppongi, M. Kimata +8

The kagome metal CsVSb exhibits an unusual charge-density-wave (CDW) order, where the emergence of loop current order that breaks time-reversal symmetry (TRS) has been prop…

cond-mat.supr-con2025

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…

cond-mat.str-el2024★ 8 cited

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…

cond-mat.str-el2024★ 9 cited

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…

cond-mat.supr-con2024★ 4 cited

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…

cond-mat.str-el2024★ 2 cited

Microwave Hall measurements using a circularly polarized dielectric cavity

M. Roppongi, T. Arakawa, Y. Yoshino +6

We have developed a circularly polarized dielectric rutile (TiO) cavity with a high quality-factor that can generate circularly polarized microwaves from two orthogonal linearl…

cond-mat.str-el2024★ 12 cited

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…