High-temperature resistivity of RBa2Cu3O7-y, where R=La, Pr, Nd, Sm, Eu, Dy, Ho, Er, and Tm

Hong-Chang Yang, M. H. Hsieh, H. H. Sung, C. H. Chen, Herng-Er Horng, Y. S. Kan, H. C. Chen, J. C. Jao

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Abstract

The electrical resistivity of RBa2Cu3O7-y, where R=La, Pr, Nd, Eu, Dy, Ho, Er, Sm, and Tm has been measured from room temperature up to 900 K. No essential difference in the transport properties was found except for LaBa2Cu3O7-y and PrBa2Cu3O7-y which shows an anomaly in the electrical resistivity. SmBa2Cu3O7-y samples with various oxygen contents are studied in detail. Metallic behavior and linear temperature dependence of have been found for SmBa2Cu3O7-y with 0<y<0.227. The linear temperature dependence of implies weak electron-phonon coupling, which suggests that other mechanisms for high-Tc superconductivity are needed.

Original languageEnglish
Pages (from-to)9203-9208
Number of pages6
JournalPhysical Review B
Volume39
Issue number13
DOIs
Publication statusPublished - 1989 Jan 1

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temperature dependence
electrical resistivity
superconductivity
transport properties
anomalies
Superconductivity
Transport properties
Temperature
room temperature
oxygen
Oxygen
electrons
Electrons

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Yang, H-C., Hsieh, M. H., Sung, H. H., Chen, C. H., Horng, H-E., Kan, Y. S., ... Jao, J. C. (1989). High-temperature resistivity of RBa2Cu3O7-y, where R=La, Pr, Nd, Sm, Eu, Dy, Ho, Er, and Tm. Physical Review B, 39(13), 9203-9208. https://doi.org/10.1103/PhysRevB.39.9203

High-temperature resistivity of RBa2Cu3O7-y, where R=La, Pr, Nd, Sm, Eu, Dy, Ho, Er, and Tm. / Yang, Hong-Chang; Hsieh, M. H.; Sung, H. H.; Chen, C. H.; Horng, Herng-Er; Kan, Y. S.; Chen, H. C.; Jao, J. C.

In: Physical Review B, Vol. 39, No. 13, 01.01.1989, p. 9203-9208.

Research output: Contribution to journalArticle

Yang, H-C, Hsieh, MH, Sung, HH, Chen, CH, Horng, H-E, Kan, YS, Chen, HC & Jao, JC 1989, 'High-temperature resistivity of RBa2Cu3O7-y, where R=La, Pr, Nd, Sm, Eu, Dy, Ho, Er, and Tm', Physical Review B, vol. 39, no. 13, pp. 9203-9208. https://doi.org/10.1103/PhysRevB.39.9203
Yang, Hong-Chang ; Hsieh, M. H. ; Sung, H. H. ; Chen, C. H. ; Horng, Herng-Er ; Kan, Y. S. ; Chen, H. C. ; Jao, J. C. / High-temperature resistivity of RBa2Cu3O7-y, where R=La, Pr, Nd, Sm, Eu, Dy, Ho, Er, and Tm. In: Physical Review B. 1989 ; Vol. 39, No. 13. pp. 9203-9208.
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