Anisotropic transport properties of impurity (Co) doped and oxygen controlled single-crystal Bi2Sr2CaCu2O8+δ: Evidence of temperature-dependent interlayer coupling and a pseudogap

Takao Watanabe, Takenori Fujii, Azusa Matsuda

Research output: Contribution to journalArticle

Abstract

We investigate the effects of impurity (Co) substitution and carrier doping on the anisotropic transport properties of Bi2Sr2CaCu2O8+δ single crystals, focusing on the interlayer charge dynamics. Our analysis shows that the out-of-plane transport in the Bi2Sr2CaCu2O8+δ system is well described by the tunneling (Lawrence-Doniach) model. By carefully reducing the oxygen content, deviation from T-linear in-plane resistivity, which is similar the behavior in Ba2YCu3O7-δ , can be observed. On the other hand, the out-of-plane resistivity monotonically increases with decreasing temperature, showing no correlation with the anomalous in-plane behavior.

Original languageEnglish
Pages (from-to)1169-1170
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume282-287
Issue numberPART 3
Publication statusPublished - 1997 Aug
Externally publishedYes

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Transport properties
interlayers
Substitution reactions
transport properties
Doping (additives)
Single crystals
Impurities
Oxygen
impurities
electrical resistivity
single crystals
oxygen
substitutes
deviation
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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abstract = "We investigate the effects of impurity (Co) substitution and carrier doping on the anisotropic transport properties of Bi2Sr2CaCu2O8+δ single crystals, focusing on the interlayer charge dynamics. Our analysis shows that the out-of-plane transport in the Bi2Sr2CaCu2O8+δ system is well described by the tunneling (Lawrence-Doniach) model. By carefully reducing the oxygen content, deviation from T-linear in-plane resistivity, which is similar the behavior in Ba2YCu3O7-δ , can be observed. On the other hand, the out-of-plane resistivity monotonically increases with decreasing temperature, showing no correlation with the anomalous in-plane behavior.",
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T1 - Anisotropic transport properties of impurity (Co) doped and oxygen controlled single-crystal Bi2Sr2CaCu2O8+δ

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AU - Watanabe, Takao

AU - Fujii, Takenori

AU - Matsuda, Azusa

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