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Mechanical against chemical pressure in the Y(Ba1-xSrx)(2)Cu3O7-d system

Abstract:

The structural refinement of YSr2Cu3O6.84 allows us to analyze why the chemical pressure applied to YBa2Cu3O6.84, by substituting Sr for Ba, results in a decrease of Tc (88 to 63 K). Even though the chemical pressure induces a volume decrease of 5.7%, the thickness along the c axis of the superconducting block increases by 3.0%. This behavior seems to be due to the incompressibility of the Y coordination polyhedron. The SrO layer becomes negatively strained since the Sr polyhedron does not re...

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Publication status:
Published

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Authors


Marezio, M More by this author
Gilioli, E More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Volume:
341
Issue:
PART 1
Pages:
375-378
Publication date:
2000-11-05
DOI:
ISSN:
0921-4534
URN:
uuid:2ea5b8e8-4b78-4bfd-9a76-e38e3a0507ed
Source identifiers:
66353
Local pid:
pubs:66353

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