Relation between superconducting transition temperature and oxygen ordering in YBa2Cu3O6+x
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Relation between superconducting transition temperature and oxygen ordering in YBa2Cu3O6+x. / Poulsen, Henning Friis; Andersen, Niels Hessel; Andersen, Jørgen Vitting; Bohrt, Henrik; Mouritsen, Ole G.
I: Nature, Bind 349, Nr. 6310, 1991, s. 594-596.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Relation between superconducting transition temperature and oxygen ordering in YBa2Cu3O6+x
AU - Poulsen, Henning Friis
AU - Andersen, Niels Hessel
AU - Andersen, Jørgen Vitting
AU - Bohrt, Henrik
AU - Mouritsen, Ole G.
PY - 1991
Y1 - 1991
N2 - THE superconducting transition temperature, Tc, of the ceramic high-temperature superconductor YBa2Cu3O6+xis known to depend not only on the oxygen stoichiometry x (0 < x < 1) but also on the specific ordering of the oxygen atoms in the basal CuO planes1-7. Here we present computer simulations of the formation of oxygen-ordered domains of orthorhombic structure in the basal CuO plane using a microscopic model of the oxygen ordering. Together with a minimal-model assumption for the charge transfer, our calculations strongly suggest that it is these domains that are responsible for the characteristic variation of Tc(x). Our results lead to a theoretical prediction of Tc(x) that is in close quantitative agreement with experiments.
AB - THE superconducting transition temperature, Tc, of the ceramic high-temperature superconductor YBa2Cu3O6+xis known to depend not only on the oxygen stoichiometry x (0 < x < 1) but also on the specific ordering of the oxygen atoms in the basal CuO planes1-7. Here we present computer simulations of the formation of oxygen-ordered domains of orthorhombic structure in the basal CuO plane using a microscopic model of the oxygen ordering. Together with a minimal-model assumption for the charge transfer, our calculations strongly suggest that it is these domains that are responsible for the characteristic variation of Tc(x). Our results lead to a theoretical prediction of Tc(x) that is in close quantitative agreement with experiments.
U2 - 10.1038/349594a0
DO - 10.1038/349594a0
M3 - Journal article
AN - SCOPUS:0026105767
VL - 349
SP - 594
EP - 596
JO - Nature
JF - Nature
SN - 0028-0836
IS - 6310
ER -
ID: 236892765