Abstract
Magnetic measurements of the influence of pressure of 1 GPa on superconducting ReBa1,5Sr0,5Cu3Ox ceramics (Re = Y, Gd) are made. It is shown that the relaxation of Tc is caused by the pressure-induced reordering of oxygen ions in the CuO chains. The relaxation times of Tc under pressure are determined. The effects connected with the changes of sublattice volume and oxygen ions ordering under pressure are differentiated. The effects are found to depend on oxygen content. The effect caused by the oxygen ordering increases sharply with decreasing x. To our knowledge, the total effect, dTc/dP ≈ 20 K·GPa-1 for YBa1.5Sr0.5Cu3O6.56 is the highest one for 123 structure HTSCs.
Original language | English |
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Pages (from-to) | 1362-1363 |
Number of pages | 2 |
Journal | Fizika Nizkikh Temperatur |
Volume | 22 |
Issue number | 11 |
State | Published - 1 Nov 1996 |
ASJC Scopus subject areas
- General Physics and Astronomy