158 citations · 706 across the 25 of their papers we have counts for
25 papers
Superconducting Dome and Quantum Criticality in Two-Dimensional NbO2 Triangular Lattice
Takuto Soma, Kohei Yoshimatsu, Akira Ohtomo
The emergence of superconductivity with strong correlation is one of the most attracted issues in condensed-matter physics, as seen in various unconventional superconductors. Here…
Electronic band structure of Ti2O3 thin films studied by angle-resolved photoemission spectroscopy
Naoto Hasegawa, Kohei Yoshimatsu, Daisuke Shiga +5
Ti2O3 exhibits a unique metal-insulator transition (MIT) at approximately 450 K over a wide temperature range of ~ 150 K. This broad MIT accompanied by lattice deformation differs…
Development of a versatile micro-focused angle-resolved photoemission spectroscopy system with Kirkpatrick-Baez mirror optics
Miho Kitamura, Seigo Souma, Asuka Honma +11
Angle-resolved photoemission spectroscopy using a micro-focused beam spot (micro-ARPES) is becoming a powerful tool to elucidate key electronic states of exotic quantum materials.…
Electronic structure of SrTiVO films studied by photoemission spectroscopy: Screening for a transparent electrode material
Tatsuhiko Kanda, Daisuke Shiga, Ryu Yukawa +8
This study investigated the electronic structure of SrTiVO (STVO) thin films, which are solid solutions of strongly correlated transparent conductive oxide (TCO) Sr…
Temperature evolution of magnetic phases near the thickness-dependent metal-insulator transition in LaSrMnO thin films observed by XMCD
Goro Shibata, Kohei Yoshimatsu, Enju Sakai +9
Perovskite-type manganites, which are well-known for their intriguing physical properties such as colossal magnetoresistance (CMR) and half metalicity, have been considered as cand…
Thickness dependence of electronic and crystal structures in VO ultrathin films: suppression of the collaborative Mott-Peierls transition
D. Shiga, B. E. Yang, N. Hasegawa +7
Through photoemission spectroscopy, we investigated the change in the electronic and crystal structures of dimensionality-controlled VO films coherently grown on Ti…