23 citations · 30 across the 3 of their papers we have counts for
6 papers
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…
Force-detected high-frequency electron spin resonance spectroscopy using magnet-mounted nanomembrane: robust detection of thermal magnetization modulation
Hideyuki Takahashi, Tsubasa Okamoto, Kento Ishimura +3
In this study, we report a conceptually novel broadband high-frequency electron spin resonance (HFESR) spectroscopic technique. In contrast to the ordinary force-detected ESR techn…
Low-temperature-compatible tunneling-current-assisted scanning microwave microscope utilizing a rigid coaxial resonator
Hideyuki Takahashi, yoshinori imai, Atsutaka Maeda
We present a design for a tunneling-current-assisted scanning near-field microwave microscope. For stable operation at cryogenic temperatures, making a small and rigid microwave pr…
Near-field microwave imaging of inhomogeneous KFeSe: separation of topographic and electric features
Hideyuki Takahashi, Yoshinori Imai, Atsutaka Maeda
It is important for modern scanning microwave microscopes to overcome the effect of the surface roughness. Here, we report microwave conductivity imaging of the phase-separated iro…
Investigation of the Superconducting Gap Structure in SrFe(AsP) by Magnetic Penetration Depth and Flux Flow Resistivity Analysis
Hideyuki Takahashi, Tatsunori Okada, Yoshinori Imai +4
We measured the microwave surface impedances and obtained the superfluid density and flux flow resistivity in single crystals of a phosphor-doped iron-based superconductor SrFe…