Homogeneous distribution of carriers in the conducting planes by Zn substitution at Cu sites in Cu₀.₅Tl₀.₅Ba₂Ca₃Cu₄O₁₂–δ superconductors
The effect of suppression of antiferromagnetic order and charge stripes formation mechanism, by Zn3d¹⁰ (S = 0) substitution at Cu3d⁹ (S = 1/2) sites in CuO₂ planes of Cu₀.₅Tl₀.₅Ba₂Ca₃Cu₄O₁₂–δ, on superconductivity parameters is demonstrated. If antiferromagnetism and charge stripes have some role in...
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| Datum: | 2010 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2010
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| Schriftenreihe: | Физика низких температур |
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| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/116894 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Homogeneous distribution of carriers in the conducting planes by Zn substitution at Cu sites in Cu₀.₅Tl₀.₅Ba₂Ca₃Cu₄O₁₂–δ superconductors / M. Mumtaz, N. A. Khan // Физика низких температур. — 2010. — Т. 36, № 2. — С. 196-201. — Бібліогр.: 57 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The effect of suppression of antiferromagnetic order and charge stripes formation mechanism, by Zn3d¹⁰ (S = 0) substitution at Cu3d⁹ (S = 1/2) sites in CuO₂ planes of Cu₀.₅Tl₀.₅Ba₂Ca₃Cu₄O₁₂–δ, on superconductivity parameters is demonstrated. If antiferromagnetism and charge stripes have some role in bringing about superconductivity at a particular temperature, the doping of nonmagnetic Zn impurity would destroy it and hence the superconductivity. However we have observed enhanced superconducting properties with the increase of Zn doping in Cu₀.₅Tl₀.₅Ba₂Ca₃Cu₄O₁₂–δ superconductor. The decreased c-axis length with the increase of Zn doping improves interlayer coupling and hence the three-dimensional conductivity in the unit cell. The role of charge carriers in CuO₂ planes of Cu₀.₅Tl₀.₅Ba₂Ca₃Cu₄O₁₂–δ in bringing about superconductivity has also been explained. |
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