38 citations · 67 across the 3 of their papers we have counts for
4 papers
Broadband method for precise microwave spectroscopy of superconducting thin films near the critical temperature
H. Kitano, T. Ohashi, A. Maeda
We present a high-resolution microwave spectrometer to measure the frequency-dependent complex conductivity of a superconducting thin film near the critical temperature. The instru…
Critical charge dynamics of superconducting LSCO thin films probed by complex microwave spectroscopy: Anomalous changes of the universality class by hole doping
T. Ohashi, H. Kitano, I. Tsukada +1
We study the critical charge dynamics of the superconducting to the normal-state transition for LSCO thin films with a wide range of the Sr concentration, by measuring the frequenc…
Dynamic fluctuations in the superconductivity of NbN films from microwave conductivity measurements
Takeyoshi Ohashi, Haruhisa Kitano, Astutaka Maeda +2
We have measured the frequency and temperature dependences of complex ac conductivity, σ(ω)=σ_1(ω)-iσ_2(ω), of NbN films in zero magnetic field between 0.1 to 10 GHz using a microw…
Critical microwave-conductivity fluctuations across the phase diagram of superconducting LaSrCuO thin films
Haruhisa Kitano, Takeyoshi Ohashi, Atsutaka Maeda +1
We report a systematic study of the dynamic microwave conductivity near for LaSrCuO (LSCO) thin films with =0.07 to 0.16. The strong frequency dependence o…