We review experimental studies of the time decay of the nonequilibrium magnetization in
high-temperature superconductors, a phenomenon known as magnetic relaxation. This …

A magnetic field harmonically varying in time (to probe the sample) and a lock-in technique
(to register the sample response sensed by a pick-up coil) are widely used for characterizing …

The London penetration depth λ (T) was measured in a single crystal of V 3 Si. The
superfluid density obtained from this measurement shows a distinct signature of two almost …

The complex ac magnetic susceptibilities (χ n= χ n′+ i χ n ″) of high-T c superconductors
in absence of dc fields have been studied by numerically solving the nonlinear diffusion …

When compared with rare-earth coated conductors, magnesium diboride superconducting
cables are known to show significant advantages by cost and easy production. However, the …

The temperature dependence of the 1st and 3rd harmonics (χ^′,′′_1,3) of the AC
magnetic susceptibility has been measured on melt grown YBCO samples for different …

The temperature dependence of AC susceptibility of polycrystalline YBa2Cu3Oy thin film
and (Bi, Pb) 2Sr2Ca2Cu3Oy bulk samples were measured as a function of frequency and …

We have performed AC susceptibility measurements as a function of temperature; frequency
and AC field amplitude on a rectangular bar shaped high-temperature superconductor with …

The temperature behavior of the first critical field (BC 1) of superconducting thin film samples
can be determined with high accuracy using an inductive and contactless method. Driving a …

The local ac magnetic response in Bi 2 Sr 2 CaCu 2 O 8 crystals was measured using a
microscopic array of Hall sensors. The ac component of the local induction is found to attain …