Влияние всестороннего сжатия на проводимость монокристаллов Y0.95Pr0.05Ba2Cu3O7-d с системой однонаправленных двойниковых границ

Анотація

In the present work we investigate the influence of high hydrostatic pressure up to 17 kbar on the conductivity in the basal abplane
of lightly doped praseodymium (x ~ 0.05) YBa2Cu3O7-d single-crystals with unidirectional twin boundaries. It is determined that,
in contrast to the undoped YBa2Cu3O7-d samples with optimal oxygen content, the application of high pressure leads to a doubling of the pressure derivative value dTc/dP. The possible mechanisms explaining the high pressure influence on critical temperature (Tc) and the phase segregation in the sample volume are discussed.