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TWIN FORMATION AND STRUCTURAL MODULATIONS IN ORTHORHOMBIC AND TETRAGONAL YBA2(CU1-XCOX)3O7-DELTA

Abstract:

The microstructure of YBa2(Cu1-xCox)3O7-δ, prepared by the standard ceramic method, shows lamellar twin structures with decreasing spacings between twin walls with increasing Co content for x≲0.02, developing into {110}-type cross-hatched 'tweed' modulation for x≳0.02. Several wall junctions are found for x=0.02. The structural phase transition between macroscopically orthorhombic and tetragonal material occurs at x≈0.025; structural modulations (λ≈20 angstrom) persist in the samples with hig...

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Publication status:
Published

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Publisher copy:
10.1080/09500838908206464

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Journal:
PHILOSOPHICAL MAGAZINE LETTERS
Volume:
60
Issue:
6
Pages:
241-248
Publication date:
1989-12-01
DOI:
EISSN:
1362-3036
ISSN:
0950-0839
Source identifiers:
46461
Language:
English
Pubs id:
pubs:46461
UUID:
uuid:6d3d03a5-25a2-4808-89f6-d7f6a243e122
Local pid:
pubs:46461
Deposit date:
2012-12-19

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