42 citations · 112 across the 4 of their papers we have counts for
6 papers
Comparative study of macroscopic quantum tunneling in Bi_2Sr_2CaCu_2O_y intrinsic Josephson junctions with different device structures
K. Ota, K. Hamada, R. Takemura +6
We investigated macroscopic quantum tunneling (MQT) of BiSrCaCuO intrinsic Josephson junctions (IJJs) with two device structures. One is a nanometer-thick small mes…
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…
Complex microwave conductivity of Na-DNA powders
H. Kitano, K. Ota, A. Maeda
We report the complex microwave conductivity, , of Na-DNA powders, which was measured from 80 K to 300 K by using a microwave cavity perturbation technique. We found th…
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…
Sliding conduction by the quasi one-dimensional charge-ordered state in SrCaCuO
A. Maeda, R. Inoue, H. Kitano +3
Nonlinear conduction (NLC) of the two-leg spin ladder, SrCaCuO, was investigated for the =0, 1 and 12 materials . Although insulating materials (=0…