Effect of pressure on paraconductivity in HoBa₂Cu₃O₇-δ single crystals with oxygen deficiency

• Дата: 2016
• Автори: Tiutierieva, K.V., Dovgopolova, Ya.V., Chernovol-Tkachenko, O.O., Ivrij, I.L., Vovk, R.V., Prihod'ko, S.I.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2016
• Назва видання: Functional Materials
• Теми: Characterization and properties
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/121378
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Effect of pressure on paraconductivity in HoBa₂Cu₃O₇-δ single crystals with oxygen deficiency / K.V. Tiutierieva, Ya.V. Dovgopolova, O.O. Chernovol-Tkachenko, I.L. Ivrij, R.V. Vovk, S.I. Prihod'ko // Functional Materials. — 2016. — Т. 23, № 3. — С. 370-377. — Бібліогр.: 68 назв. — англ.

In this work, we have investigated the effect of high pressure on conductivity in basal plane of the high temperature super conducting single crystals HoBa₂Cu₃O₇-δ with oxygen deficiency. It has been determined that the excess conductivity Δσ(T) of HoBa₂Cu₃O₇-δ single crystals in temperature interval near the critical temperature (Tc) is described within the framework of the Aslamazov-Larkin theoretical model. It has been shown that evolution of the transverse coherence length ξc(0) in the case of application/removal of the high pressure is largely determined by the "relaxation" pressure effect during prolonged exposure of the sample under load at the room temperature.