Thermoelectric power of Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O high Tc superconductors

A. K. Bhatnagar; R. Pan; D. G. Naugle; P. J. Squattrito; A. Clearfield; Z. Z. Sheng; Q. A. Shams; A. M. Hermann

doi:10.1016/0038-1098(90)90014-3

Thermoelectric power of Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O high T_c superconductors

A. K. Bhatnagar, R. Pan, D. G. Naugle, P. J. Squattrito, A. Clearfield, Z. Z. Sheng, Q. A. Shams, A. M. Hermann

https://www.cmich.edu/academics/colleges/college-science-engineering/departments-schools/chemistry-and-biochemistry

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Abstract

The resistance and the thermoelectric power of thallium based high T_c superconductors Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O have been measured in the temperature interval 77-300 K. The resistive behaviour of Tl-Ca-Ba-Cu-O is found to be metallic while that of Pr-Tl-Sr-Ca- Cu-O shows a mixed metallic and semiconductive behaviour. The thermoelectric power of both superconductors is positive throughout the temperature interval. The thermoelectric power of the Tl-Ca-Ba- Cu-O superconductor decreases linearly with increasing temperature above the superconducting transition temperature, T_c, below which it is zero. The thermoelectric power of the Pr-Tl-Sr-Ca-Cu-O sample shows a maximum near 180 K. The temperature dependence of the thermoelectric power of these samples, above T_c, is quite different than that observed for RBa₂Cu₃O_7-x superconductors.

Original language	English
Pages (from-to)	53-57
Number of pages	5
Journal	Solid State Communications
Volume	73
Issue number	1
DOIs	https://doi.org/10.1016/0038-1098(90)90014-3
State	Published - Jan 1990

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title = "Thermoelectric power of Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O high Tc superconductors",

abstract = "The resistance and the thermoelectric power of thallium based high Tc superconductors Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O have been measured in the temperature interval 77-300 K. The resistive behaviour of Tl-Ca-Ba-Cu-O is found to be metallic while that of Pr-Tl-Sr-Ca- Cu-O shows a mixed metallic and semiconductive behaviour. The thermoelectric power of both superconductors is positive throughout the temperature interval. The thermoelectric power of the Tl-Ca-Ba- Cu-O superconductor decreases linearly with increasing temperature above the superconducting transition temperature, Tc, below which it is zero. The thermoelectric power of the Pr-Tl-Sr-Ca-Cu-O sample shows a maximum near 180 K. The temperature dependence of the thermoelectric power of these samples, above Tc, is quite different than that observed for RBa2Cu3O7-x superconductors.",

author = "Bhatnagar, {A. K.} and R. Pan and Naugle, {D. G.} and Squattrito, {P. J.} and A. Clearfield and Sheng, {Z. Z.} and Shams, {Q. A.} and Hermann, {A. M.}",

year = "1990",

month = jan,

doi = "10.1016/0038-1098(90)90014-3",

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T1 - Thermoelectric power of Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O high Tc superconductors

AU - Bhatnagar, A. K.

AU - Pan, R.

AU - Naugle, D. G.

AU - Squattrito, P. J.

AU - Clearfield, A.

AU - Sheng, Z. Z.

AU - Shams, Q. A.

AU - Hermann, A. M.

PY - 1990/1

Y1 - 1990/1

N2 - The resistance and the thermoelectric power of thallium based high Tc superconductors Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O have been measured in the temperature interval 77-300 K. The resistive behaviour of Tl-Ca-Ba-Cu-O is found to be metallic while that of Pr-Tl-Sr-Ca- Cu-O shows a mixed metallic and semiconductive behaviour. The thermoelectric power of both superconductors is positive throughout the temperature interval. The thermoelectric power of the Tl-Ca-Ba- Cu-O superconductor decreases linearly with increasing temperature above the superconducting transition temperature, Tc, below which it is zero. The thermoelectric power of the Pr-Tl-Sr-Ca-Cu-O sample shows a maximum near 180 K. The temperature dependence of the thermoelectric power of these samples, above Tc, is quite different than that observed for RBa2Cu3O7-x superconductors.

AB - The resistance and the thermoelectric power of thallium based high Tc superconductors Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O have been measured in the temperature interval 77-300 K. The resistive behaviour of Tl-Ca-Ba-Cu-O is found to be metallic while that of Pr-Tl-Sr-Ca- Cu-O shows a mixed metallic and semiconductive behaviour. The thermoelectric power of both superconductors is positive throughout the temperature interval. The thermoelectric power of the Tl-Ca-Ba- Cu-O superconductor decreases linearly with increasing temperature above the superconducting transition temperature, Tc, below which it is zero. The thermoelectric power of the Pr-Tl-Sr-Ca-Cu-O sample shows a maximum near 180 K. The temperature dependence of the thermoelectric power of these samples, above Tc, is quite different than that observed for RBa2Cu3O7-x superconductors.

UR - http://www.scopus.com/inward/record.url?scp=0025220871&partnerID=8YFLogxK

U2 - 10.1016/0038-1098(90)90014-3

DO - 10.1016/0038-1098(90)90014-3

M3 - Article

AN - SCOPUS:0025220871

SN - 0038-1098

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EP - 57

JO - Solid State Communications

JF - Solid State Communications

IS - 1

ER -

Thermoelectric power of Tl-Ca-Ba-Cu-O and Pr-Tl-Sr-Ca-Cu-O high T_c superconductors

Abstract

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