Resistivities of ceramic and single-crystalline superconducting oxides to 1100K: What do they tell us?

M. Gurvitch; A. T. Fiory; L. S. Schneemeyer; R. T. Cava; G. P. Espinosa; J. V. Waszczak

doi:10.1016/0921-4534(88)90325-5

Resistivities of ceramic and single-crystalline superconducting oxides to 1100K: What do they tell us?

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

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19 Scopus citations

Abstract

Resistivities ϱ(T) of ceramic samples of La_1.825Sr_0.175CuO₄ (LSCO) and both ceramic and single-crystalline (a-b plane, containing micro-twins) samples of YBa₂Cu₃O₇ (YBCO) were measured from T_c 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 language	English (US)
Pages (from-to)	1369-1370
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	153-155
DOIs	https://doi.org/10.1016/0921-4534(88)90325-5
State	Published - 1988
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(88)90325-5

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@article{ad488760f7684bc2823038b06db57799,

title = "Resistivities of ceramic and single-crystalline superconducting oxides to 1100K: What do they tell us?",

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.",

author = "M. Gurvitch and Fiory, {A. T.} and Schneemeyer, {L. S.} and Cava, {R. T.} and Espinosa, {G. P.} and Waszczak, {J. V.}",

year = "1988",

doi = "10.1016/0921-4534(88)90325-5",

language = "English (US)",

volume = "153-155",

pages = "1369--1370",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

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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, L. S.

AU - Cava, R. T.

AU - Espinosa, G. P.

AU - Waszczak, J. V.

PY - 1988

Y1 - 1988

N2 - 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.

AB - 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.

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

ER -

Resistivities of ceramic and single-crystalline superconducting oxides to 1100K: What do they tell us?

Abstract

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