We report microwave surface resistance (R s) measurements on two very-high-quality YBa 2
Cu 3 O 6.95 crystals which exhibit extremely low residual loss at 1.2 K (2-6 μΩ at 2 GHz), a …

A set of highly sensitive cavity perturbation techniques, quite different from the ones most
commonly used to measure thin films, has been developed for measuring the surface …

Muon-spin-rotation (μSR) experiments on a high-quality sintered YBa 2 Cu 3 O x sample [x=
6.970 (1)] were performed, in order to obtain an accurate knowledge of the magnitude and …

Abstract Nonequilibrium in Y-Ba-Cu-O thin films biased with a dc current is photoinduced by
exposure to 300-fsec 2-eV laser pulses. The photoinduced nonequilibrium transients were …

These lectures are concerned with the application of high temperature superconductors to
both passive and active high-frequency devices. The central issue addressed is the …

Temperature dependences of the first critical field H c1 (T) are studied in YBa 2 Cu 3 O 6.9
single crystal by the onset of the trapped moment. The advantage of this method for H c1 …

A new technique, transient photoimpedance response (TPR), has been formulated and was
used to measure the nonequilibrium relaxation process in YBCO and Niobium. The TPR …

Muon spin rotation (μ+ SR) measurements were conducted on a single crystal of YBa 2 Cu 3
O 7 with a superconducting transition temperature of T c≈ 91.3 K and a transition width of Δ …

Abstract The anisotropy YBaCuO 7-δ (0≤ δ≤ 0.5) was studied as a function of the oxygen
deficiency. The mass ratio is found to increase rapidly as the oxygen concentration is …

The evidence from NMR experiments for the existence of strong temperature dependent
antiferromagnetic correlations among nearly localized Cu 2+ spins in the cuprate oxide …