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Studies the effect of hydrostatic pressure on pressure, temperature and time dependences of the conductivity in the ab-plane of single crystals with different oxygen concentrations. Parameters of single crystals with different superconducting transition temperature; Peculiarities in the behavior of dependences due to several mechanisms.

Investigates the effect of low-temperature annealing on the superconducting transition temperature and electrical resistance of single crystals of YBa(sub 2)Cu(sub 3)O(sub 7-sigma) quenched from temperatures of 620-650 degrees Celsius. Increase in transition temperature and decrease in resistance during annealing; Isothermal relaxation of resistance.

Measures the current-voltage characteristics (IVC) for YBaCuO single crystals in a magnetic field applied at 45 degrees twinning planes. Derivation of the current- and field dependencies of the pinning potential from the IVC curves; Indication of the obtained dependencies; Control of the flux creep in the range of strong magnetic fields.