Resistivities of ceramic and single-crystalline superconducting oxides to 1100K

What do they tell us?

M. Gurvitch, A. T. Fiory, Lynn Schneemeyer, R. T. Cava, G. P. Espinosa, J. V. Waszczak

Research output: Contribution to journalArticleResearchpeer-review

18 Citations (Scopus)

Abstract

Resistivities ϱ(T) of ceramic samples of La1.825Sr0.175CuO4 (LSCO) and both ceramic and single-crystalline (a-b plane, containing micro-twins) samples of YBa2Cu3O7 (YBCO) were measured from Tc to 1100K. The observed absence of saturation in the linear parts of ϱ(T) implies weak electron-phonon coupling in both superconductors, thus excluding the possibility of phonon-mediated superconductivity. Oxygen desorption causes faster than linear dependence at T 〉 800 K in YBCO crystals (compared to T 〉 600 K for ceramics), demonstrating that inelastic scattering is linear in T up to at least 800 K.

Original languageEnglish
Pages (from-to)1369-1370
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume153-155
DOIs
StatePublished - 1 Jan 1988

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Inelastic scattering
Superconductivity
Oxides
Superconducting materials
Desorption
ceramics
Crystalline materials
Crystals
electrical resistivity
Oxygen
oxides
Electrons
inelastic scattering
superconductivity
desorption
saturation
causes
oxygen
crystals
barium copper yttrium oxide

Cite this

Gurvitch, M. ; Fiory, A. T. ; Schneemeyer, Lynn ; Cava, R. T. ; Espinosa, G. P. ; Waszczak, J. V. / Resistivities of ceramic and single-crystalline superconducting oxides to 1100K : What do they tell us?. In: Physica C: Superconductivity and its Applications. 1988 ; Vol. 153-155. pp. 1369-1370.
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Resistivities of ceramic and single-crystalline superconducting oxides to 1100K : What do they tell us? / Gurvitch, M.; Fiory, A. T.; Schneemeyer, Lynn; Cava, R. T.; Espinosa, G. P.; Waszczak, J. V.

In: Physica C: Superconductivity and its Applications, Vol. 153-155, 01.01.1988, p. 1369-1370.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Resistivities of ceramic and single-crystalline superconducting oxides to 1100K

T2 - What do they tell us?

AU - Gurvitch, M.

AU - Fiory, A. T.

AU - Schneemeyer, Lynn

AU - Cava, R. T.

AU - Espinosa, G. P.

AU - Waszczak, J. V.

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