Pashchenko O. Anisotropy of magnetic and superconducting properties in nonstoichiometric rare-earth perovskites REBa2Cu3O6+(

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0402U003379

Thesis Registration Form

0402U003379.pdf

Applicant for

Specialization

  • 01.04.07 - Фізика твердого тіла

07-11-2002

Specialized Academic Board

Д 11.184.01

Essay

The dissertation is devoted to establishing the causes of appearance and ways of changing magnetic and superconducting anisotropy, the coexistence conditions of superconductivity and magnetism in nonstoichiometric rare-earth perovskites REBa2Cu3O6+(. The investigations were carried out by X-ray and magnetic methods in wide ranges of temperature (0,5-100К) and magnetic field (0-36кOe). There were obtained that magnetic and superconducting subsystems did not effect each other in GdBa2Cu3O6,56. The nature of structural tetragonal-rhombic transition was established in REBa2Cu3O6+(. It was shown that the anisotropy of the magnetic and superconducting properties was influenced by the oxygen index, and the value and the direction of external magnetic field.

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Files

Автореферат.doc

Диссертация.doc

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