activity
20192026
most citedNatural van der Waals heterostructural single crystals with both magnetic and topological properties

263 citations · 301 across the 7 of their papers we have counts for

collaborators

8 papers

cond-mat.str-el2026

Chiral Antiferromagnetism from Momentum-Space Resonance in a 2D Semiconductor

R. Okuma, T. Ikenobe, Y. Fujisawa +28

Understanding the principles governing the emergence of chiral quantum phases is a fundamental challenge, not only for uncovering new mechanisms of quantum-state formation but also…

cond-mat.str-el2024

Emergent topological magnetism in Hund's excitonic insulator

R. Okuma, K. Yamagami, Y. Fujisawa +14

Analogous to the charged electron-electron pair condensation in superconductors, an excitonic insulator (EI) represents Fermi surface instability due to spontaneous formation and c…

cond-mat.str-el2023★ 8 cited

On the cuprates' universal waterfall feature: evidence of a momentum-driven crossover

Benjamin Bacq-Labreuil, Chafic Fawaz, Yuichi Okazaki +13

We study two related universal anomalies of the spectral function of cuprates, so called waterfall and high-energy kink features, by a combined cellular dynamical mean-field theory…

cond-mat.supr-con2023★ 2 cited

Imaging emergent exotic quasiparticle state in a frustrated transition metal oxide

Yuita Fujisawa, Anjana Krishnadas, Chia-Hsiu Hsu +10

The existence of rich Fermiology in anomalous metal phase in exotic superconductors has attracted considerable interests, as exemplified in copper, iron-based, and intermetallic fr…

cond-mat.supr-con2023★ 1 cited

Anomalous vortex shape in a frustrated superconductor hosting chiral multicomponent order parameters

Yuita Fujisawa, Anjana Krishnadas, Tomonori Nakamura +12

Multicomponent chiral superconductors can host spatially separated superconducting components within a single Abrikosov vortex, leading to unconventional, anisotropic vortex shapes…

cond-mat.supr-con2020★ 16 cited

Chemical composition control at the substrate interface as the key for FeSe thin film growth

Yukiko Obata, Michiko Sato, Yuji Kondo +4

The strong fascination exerted by the binary compound of FeSe demands reliable engineering protocols and more effective approaches towards inducing superconductivity in FeSe thin f…

cond-mat.mtrl-sci2019★ 263 cited

Natural van der Waals heterostructural single crystals with both magnetic and topological properties

Jiazhen Wu, Fucai Liu, Masato Sasase +8

Heterostructures having both magnetism and topology are promising materials for the realization of exotic topological quantum states while challenging in synthesis and engineering.…

cond-mat.str-el2019★ 11 cited

Insulator-like behavior coexisting with metallic electronic structure in strained FeSe thin films grown by molecular beam epitaxy

Kota Hanzawa, Yuta Yamaguchi, Yukiko Obata +4

This paper reports that ~10-nm-thick FeSe thin films exhibit insulator-like behavior in terms of the temperature dependence of their electrical resistivity even though bulk FeSe ha…