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Author |
Decca, R.; Osquiguil, E.; de la Cruz, F.; D'Ovidio, C.; Malachevski, M.T.; Esparza, D. |
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Title |
Non linear temperature dependence of the resistivity of LaSrCuO: Effects of Sr content |
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Journal Article |
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Year |
1989 |
Publication |
Solid State Communications |
Abbreviated Journal |
Solid State Commun. |
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Volume |
69 |
Issue |
4 |
Pages |
355-357 |
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Keywords |
Ceramic Materials; Lanthanum Compounds--Electric Conductivity; Superconductivity; Ceramic Superconductors; Superconducting Materials |
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Abstract |
The linear temperature dependence of the electrical resistivity has been taken to be one of the characteristic features of the ceramic superconductors. Measurements of the electrical resistance of the LaSrCuO system in a wide temperature range show that the previous statement is only an approximation valid for some values of the Sr concentration. |
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Applied Research Department, Centro At'omico Bariloche |
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00381098 (ISSN) |
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Cited By (since 1996): 2; Export Date: 17 April 2009; Source: Scopus; CODEN: SSCOA; Language of Original Document: English; Correspondence Address: Decca, R.; Basic Research Department; Centro At |
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Call Number |
BT @ osquigui @ |
Serial |
414 |
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Author |
Osquiguil, E.; Decca, R.; Nieva, G.; Civale, L.; de la Cruz, F. |
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Title |
La1.80 Sr0.20 CuO4-delta a clean limit superconductor |
Type |
Journal Article |
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Year |
1988 |
Publication |
Solid State Communications |
Abbreviated Journal |
Solid State Commun. |
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Volume |
65 |
Issue |
6 |
Pages |
491-494 |
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Keywords |
CERAMIC MATERIALS; LANTHANUM COMPOUNDS – Electric Conductivity; CERAMIC SUPERCONDUCTORS; CLEAN LIMIT SUPERCONDUCTOR; HIGH-TEMPERATURE SUPERCONDUCTORS; OXYGEN CONCENTRATION; SUPERCONDUCTING MATERIALS |
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Abstract |
The electrical resistivity of the superconductor La1.80Sr0.20Cu04-? has been measured in a wide range of temperatures as a function of oxygen and vacuum heat treatments. The resistivity changes reversibly orders of magnitude with oxygen concentration. There is no sign of saturation at high temperatures, even for samples where the resistivity is increased by heat treatment in vacuum. Using the experimental data and general arguments it is concluded that the ceramic superconductors are high ? materials in the clean limit. |
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Instituto Balseiro 8400 Bariloche, R.N., Argentina# # Comisi |
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00381098 (ISSN) |
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Notes |
Export Date: 17 April 2009; Source: Scopus; CODEN: SSCOA; Language of Original Document: English; Correspondence Address: Osquiguil, E. |
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BT @ osquigui @ |
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416 |
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