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

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 interva...

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Bibliographic Details
Main Authors: Tiutierieva, K.V., Dovgopolova, Ya.V., Chernovol-Tkachenko, O.O., Ivrij, I.L., Vovk, R.V., Prihod'ko, S.I.
Format: Article
Language:English
Published: НТК «Інститут монокристалів» НАН України 2016
Series:Functional Materials
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Online Access:http://dspace.nbuv.gov.ua/handle/123456789/121378
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Summary: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.