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An investigation into the impact of thermodynamic fluctuations on the diamagnetism of superconducting Bi2Sr2Ca2Cu3O10 tapes is presented. The study, which involves magnetization measurements and the use of the Hao-Clem variational model, characterizes the high-temperature superconductors in terms of the fluctuations induced by an applied magnetic field. It revealed the occurence of excessive diamagnetism under high fields and minimal diamagnetism in weak fields.

Presents a study that measured superconducting temperatures and magnetic fields, lattice parameters and chemical compositions for bulk layers of pure and alloyed niobium[sub3] tin which were made by the bronze process. Values of temperature of pure niobium[sub3] tin layers; Effect of small additions of titanium on the value of temperature; Experimental results.

Focuses on a study that examined the flux distributions and creep in YBa[sub2]Cu[sub3]O[sub7]. Changes in the magnetic flux distribution; Conditions necessary to fully define the linear relation between the flux profiles; Measurement of the magnetic flux which penetrates the same regions of the sample.

Deals with a study which measured the structural properties of superconducting (Bi,Pb)[sub2]Sr[sub2]Ca[sub2]Cu[sub3]O[sub10]-Ag tapes using synchrotron x-ray scattering techniques. Experimental details; Results; Conclusions.

Presents a study which investigated the alternating current losses in silver sheathed mono- and multicored (Bi,Pb)[sub2]Sr[sub2]Ca[sub2]Cu[sub3]O[sub10] superconducting tapes at liquid neon temperature under various direct current background magnetic fields. Measurement of the losses of the tapes; Role of the coupling loss; Implications of the flux disturbances to motor and generator applications; Description of the alternating current loss behavior and the Bean model.

Reports on the effects of ozone oxygenation through annealing YBa[sub2]Cu[sub3]O[sub7-δ] thin crystals for eliminating local fluctuation in oxygen content. Changes in structural defects induced by heavy-ion radiation; Microstructure of YBa[sub2]Cu[sub3]O[sub7-δ] after ozone oxygenation.

Presents a study that examined alternating current losses in yttrium-barium-copper-oxygen superconductor cylinders. Analysis of the magnetic field dependence of the losses; Correlation between grain size and losses; Examination of the transmission electron microscopy image of the samples.