3-D oxygen vacancy ordered superstructures in YBa2 Cu3 O7t-δ prepared by the constant stoichiometry cooling method
Publication type: Journal Article
Publication date: 1989-07-01
scimago Q2
wos Q3
SJR: 0.446
CiteScore: 4.3
Impact factor: 2.4
ISSN: 00381098, 18792766
Materials Chemistry
General Chemistry
Condensed Matter Physics
Abstract
Abstract In very slowly cooled (25°C/h) specimens prepared following the constant stoichiometry method, the 3D structure of the orthorhombic II (2a o ) phase in YBa 2 Cu 3 O 7−δ was determined using electron diffraction and electron microscopy. The unit cell is 2a o x b o x c o ; successive 2D configurations in the CuO 1−δ layers are aligned along the c-direction. Evidence is presented for the occurence of more complicated 2D superstructures: 3a o , 4a o and 5a o . It is suggested that the a o 2√2 × a o 2√2 structure is a deformation modulated phase, rather than a vacancy ordered one. The O II structure is the most and probably the only vacancy ordered stable phase apart from the O I and the tetragonal phases. The more complicated na o phases are probably metastable. The disordering with increasing temperature of the O II structure occurs in different stages.
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Reyes-Gasga J. et al. 3-D oxygen vacancy ordered superstructures in YBa2Cu3O7t-δ prepared by the constant stoichiometry cooling method // Solid State Communications. 1989. Vol. 71. No. 4. pp. 269-273.
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Verweij M., Amelinckx S. 3-D oxygen vacancy ordered superstructures in YBa2Cu3O7t-δ prepared by the constant stoichiometry cooling method // Solid State Communications. 1989. Vol. 71. No. 4. pp. 269-273.
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RIS
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TY - JOUR
DO - 10.1016/0038-1098(89)91012-0
UR - https://doi.org/10.1016/0038-1098(89)91012-0
TI - 3-D oxygen vacancy ordered superstructures in YBa2Cu3O7t-δ prepared by the constant stoichiometry cooling method
T2 - Solid State Communications
AU - Verweij, M.
AU - Amelinckx, S.
PY - 1989
DA - 1989/07/01
PB - Elsevier
SP - 269-273
IS - 4
VL - 71
SN - 0038-1098
SN - 1879-2766
ER -
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BibTex (up to 50 authors)
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@article{1989_Reyes-Gasga,
author = {M. Verweij and S. Amelinckx},
title = {3-D oxygen vacancy ordered superstructures in YBa2Cu3O7t-δ prepared by the constant stoichiometry cooling method},
journal = {Solid State Communications},
year = {1989},
volume = {71},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016/0038-1098(89)91012-0},
number = {4},
pages = {269--273},
doi = {10.1016/0038-1098(89)91012-0}
}
Cite this
MLA
Copy
Reyes-Gasga, J., et al. “3-D oxygen vacancy ordered superstructures in YBa2Cu3O7t-δ prepared by the constant stoichiometry cooling method.” Solid State Communications, vol. 71, no. 4, Jul. 1989, pp. 269-273. https://doi.org/10.1016/0038-1098(89)91012-0.