activity
20242026
most citedSpin-degenerate bulk bands and topological surface states associated with Dirac nodal lines in RuO2

7 citations · 9 across the 11 of their papers we have counts for

collaborators

11 papers

cond-mat.str-el2026

Electronic phase separation and emergence of a nondimerized insulating phase in VO ultrathin films

S. Inoue, D. Shiga, R. Hayasaka +3

Using in situ photoemission spectroscopy and x-ray absorption spectroscopy, we investigated the thickness dependence of the electronic structure and V-V dimerization in VO/TiO$…

cond-mat.str-el2026

Discovery of d-orbital order in Tb2CoAl4Ge2

Zhanyang Hao, Haohao Sheng, Wanru Ma +32

Orbital order describes a quantum state where occupied orbitals line up in a periodic pattern. While orbital physics plays a fundamental and universal role in strongly correlated e…

cond-mat.str-el2026

Robust topological surface states in skyrmion-host magnets Eu(Ga,Al)4: evidence for dual topology

Yuki Arai, Kosuke Nakayama, Takemi Kato +10

The interplay between real-space topology such as magnetic skyrmions and momentum-space topology characterized by topological surface states (TSSs) is predicted to realize novel ph…

cond-mat.mes-hall2026

Type-I and Type-II Saddle Points and a Topological Flat Band in a Bi-Pyrochlore Superconductor CsBi2

Yusei Morita, Yongkai Li, Yu-Hao Wei +12

The divergence of the electron density of states (DOS) plays an important role in enhancing many-body interactions and inducing various quantum phases in low-dimensional systems. H…

cond-mat.supr-con2026

Pressure-Induced Superconducting-like Transition in the -wave Altermagnet Candidate CsVSeO

Yuanzhe Li, Yilin Han, Liu Yang +29

Altermagnetism generates exchange-type spin splitting without net magnetization and, in its -wave form, resembles the angular symmetry of unconventional -wave superco…

cond-mat.mtrl-sci2025

Direct observation of band structure modifications from monolayer WSe2 to Janus WSSe

Masato Sakano, Shunsuke Akatsuka, Takato Yamamoto +19

Janus monolayer transition metal dichalcogenides (TMDs), created by post-growth substitution of the top chalcogen layer, represent a new direction for engineering 2D crystal proper…

cond-mat.mtrl-sci2025

Anomalous mass renormalization in two-dimensional electron systems on ultra-wide bandgap semiconductor -GaO

Ryu Yukawa, Hiroshi Mizuseki, Suryo Santoso Putro +27

Two-dimensional electron systems (2DESs) at wide-bandgap semiconductor surfaces and interfaces are fertile ground for emergent quantum phenomena. Here, we use micro-focused angle-r…

physics.ins-det2025

Development of a linac-based LEPD experimental station for surface structure analysis and coordination with synchrotron radiation ARPES

Rezwan Ahmed, Izumi Mochizuki, Toshio Hyodo +11

We report on the development of a low-energy positron diffraction (LEPD) experimental station for surface structure analysis using a linac-based slow-positron beam. LEPD, the posit…

cond-mat.mtrl-sci2025★ 7 cited

Spin-degenerate bulk bands and topological surface states associated with Dirac nodal lines in RuO2

T. Osumi, K. Yamauchi, S. Souma +13

Altermagnets are a novel platform to realize exotic electromagnetic properties distinct from those of conventional ferromagnets and antiferromagnets. We report results of micro-foc…

cond-mat.supr-con2024

Evolution of Band Structure in a Kagome Superconductor Cs(V1-xCrx)3Sb5: Toward Universal Understanding of CDW and Superconducting Phase Diagrams

Shuto Suzuki, Takemi Kato, Yongkai Li +10

Kagome superconductors AV3Sb5 (A = K, Rb, Cs) exhibit a characteristic superconducting and charge-density wave (CDW) phase diagram upon carrier doping and chemical substitution. Ho…

cond-mat.mes-hall2024★ 2 cited

Universal Role of Combined Symmetry for the Protection of the Dirac Cone in Antiferromagnetic Topological Insulators

Asuka Honma, Noriyuki Kabeya, Seigo Souma +13

Antiferromagnetic topological insulators (AF TIs) are predicted to exhibit exotic physical properties such as gigantic optical and topological magnetoelectric responses. While a ke…