107 citations · 142 across the 8 of their papers we have counts for
8 papers
Fabrication of oxide/FeSe multilayer films using the PLD technique
Tomoki Kobayashi, Hiroki Nakagawa, Ryo Ogawa +1
In this study, we demonstrate the successful fabrication of TiO2/FeSe/STO and TiO2/FeSe/LaAlO3 heterostructures using PLD. When the growth rates were sufficiently low, anatase TiO2…
Study on fluctuations of interface-enhanced superconductivity in ultrathin FeSe/SrTiO3 by the Nernst effect
Tomoki Kobayashi, Ryo Ogawa, Atsutaka Maeda
Ultrathin FeSe films on SrTiO3 substrate show interface-enhanced superconductivity. However, how the superconductivity is established including superconducting fluctuations remains…
Study of superconductivity of very thin films investigated by microwave complex conductivity measurements
Gaku Matsumoto, Ryo Ogawa, Koji Higasa +3
Complex conductivity measurements spanning the entire temperature range, including the vicinity of , were conducted on systematically varied FeSeTe ( = 0 - 0.5)…
Microwave flux-flow Hall effect in a multi-band superconductor FeSe
R. Ogawa, F. Nabeshima, A. Maeda
We have measured the flux-flow Hall effect in a multi-band superconductor FeSe pure single crystal to investigate the nature of the vortex core state by means of the cross-shaped b…
Large Hall angle of vortex motion in high- cuprate superconductors revealed by microwave flux-flow Hall effect
R. Ogawa, F. Nabeshima, T. Nishizaki +1
We investigated the nature of the quasi-particle state in the vortex core by means of the flux-flow Hall effect measurements at 15.8 GHz. We measured the flux-flow Hall effect in c…
Microwave Hall effect measurement for materials in the skin depth region
Ryo. Ogawa, Tatsunori Okada, Hideyuki Takahashi +2
We developed a new microwave Hall effect measurement method for materials in the skin depth region at low temperatures using a cross-shaped bimodal cavity. We analytically calculat…
Superconducting fluctuation in FeSe investigated by precise torque magnetometry
Hideyuki Takahashi, Fuyuki Nabeshima, Ryo Ogawa +3
We investigated the superconducting fluctuation in FeSe, which is assumed to be located in the BCS--BEC crossover region, via magnetic torque measurements. In our method, the absol…
Deep Learning Model for Finding New Superconductors
Tomohiko Konno, Hodaka Kurokawa, Fuyuki Nabeshima +4
Exploration of new superconductors still relies on the experience and intuition of experts and is largely a process of experimental trial and error. In one study, only 3% of the ca…