Physical and chemical properties of (Y<subscript>1−x</subscript>Ca<subscript>x</subscript>)(Ba<subscript>2−x</subscript>La<subscript>x</subscript>)Cu<subscript>3</subscript>O<subscript>7</subscript>−δ
In: Journal of Superconductivity, Jg. 8 (1995-10-01), Heft 5, S. 651-652
Online
serialPeriodical
Zugriff:
The metallic conductivity of both the CuO 2 sheets and the CuO x chains of YBa 2 Cu 3 O 7-d has been established. We have used double doping in (Y 1-x Ca x )(Ba 2-x La x )Cu 3 O 7-d to destroy the integrity of the CuO 1-d chains while keeping constant the total oxidation state of the Cu-O array. A break-up of the chain segments allows us to establish the temperature dependence of the Seebeck coefficient, a(T), due to the CuO 2 sheets and, by difference, that of the CuO 1-d chains in YBa 2 Cu 3 O 7-d . We also show that double doping enhances significantly the chemical stability of the superconductive phase. The origin of the chemical stability and of the behavior of a(T) is interpreted.
Titel: |
Physical and chemical properties of (Y<subscript>1−x</subscript>Ca<subscript>x</subscript>)(Ba<subscript>2−x</subscript>La<subscript>x</subscript>)Cu<subscript>3</subscript>O<subscript>7</subscript>−δ
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Autor/in / Beteiligte Person: | Zhou, J. P. ; Zhou, J. S. ; Goodenoug, J. B. ; McDevitt, J. T. |
Link: | |
Zeitschrift: | Journal of Superconductivity, Jg. 8 (1995-10-01), Heft 5, S. 651-652 |
Veröffentlichung: | 1995 |
Medientyp: | serialPeriodical |
ISSN: | 0896-1107 (print) ; 1572-9605 (print) |
DOI: | 10.1007/BF00727461 |
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