Mechanoelectric effect in O2− conducting cell: Relations to phase transformations and other lattice changes in YBa2Cu3O6 + x-like oxides

The origin of mechanoelectric voltage arising in an 2− -conducting solid-state cell O 2 ,Pt|ZrO 2 |Pt, O 2 , YBCO due to the pressure applied on the YBCO sample is discussed. It is demonstrated that the mechanoelectric voltage is the sum of the electronic and ionic mechanoelectric contact potentials...

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Bibliographic Details
Published in:Physics of the solid state 2008-11, Vol.50 (11), p.2016-2023
Main Authors: Gerbshteĭn, Yu. M., Timoshchenko, N. E.
Format: Article
Language:English
Subjects:
Metals and Superconductors
Physics
Physics and Astronomy
Solid State Physics
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Summary:The origin of mechanoelectric voltage arising in an 2− -conducting solid-state cell O 2 ,Pt|ZrO 2 |Pt, O 2 , YBCO due to the pressure applied on the YBCO sample is discussed. It is demonstrated that the mechanoelectric voltage is the sum of the electronic and ionic mechanoelectric contact potentials. The mechanoelectric contact potentials are determined by the work done by the load during an elementary ordering act or another elementary process taking place when the sample absorbs one oxygen atom. Effects related to oxygen atoms being ordered under the load, such as pressure-induced oxygen absorption, enhanced deformation, and change in the order parameter, are discovered.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783408110036