c-Axis transport in a normal-state bilayer cuprate and relation to pseudogap

W. C. Wu; W. A. Atkinson; J. P. Carbotte

doi:10.1023/A:1022600421541

c-Axis transport in a normal-state bilayer cuprate and relation to pseudogap

W. C. Wu^*
, W. A. Atkinson
, J. P. Carbotte

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We study the effect of interband transitions on the normal-state optical conductivity, dc resistivity, and thermal conductivity along the c-axis, for a plane-chain bilayer cuprate coupled by a perpendicular hopping matrix element (t_⊥). When t_⊥ is small, the c-axis dc resistivity shows a characteristic upturn as the temperature is lowered, and the c-axis optical conductivity develops a pseudogap at low frequencies. As t_⊥ is increased, intraband transitions start to dominate and a more conventional response is obtained. Similar pseudogap behavior is predicted in the thermal conductivity for which strong depression at low temperature is found. Analytical results for a simple plane-plane bilayer are also given, including the frequency sum rule of the optical conductivity.

Original language	English
Pages (from-to)	305-315
Number of pages	11
Journal	Journal of Superconductivity
Volume	11
Issue number	2
DOIs	https://doi.org/10.1023/A:1022600421541
Publication status	Published - 1998

Keywords

High-T superconductors
Transports
c-axis

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Physics and Astronomy (miscellaneous)

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Cite this

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title = "c-Axis transport in a normal-state bilayer cuprate and relation to pseudogap",

abstract = "We study the effect of interband transitions on the normal-state optical conductivity, dc resistivity, and thermal conductivity along the c-axis, for a plane-chain bilayer cuprate coupled by a perpendicular hopping matrix element (t⊥). When t⊥ is small, the c-axis dc resistivity shows a characteristic upturn as the temperature is lowered, and the c-axis optical conductivity develops a pseudogap at low frequencies. As t⊥ is increased, intraband transitions start to dominate and a more conventional response is obtained. Similar pseudogap behavior is predicted in the thermal conductivity for which strong depression at low temperature is found. Analytical results for a simple plane-plane bilayer are also given, including the frequency sum rule of the optical conductivity.",

keywords = "High-T superconductors, Transports, c-axis",

author = "Wu, \{W. C.\} and Atkinson, \{W. A.\} and Carbotte, \{J. P.\}",

note = "Funding Information: We thank Dwayne Branch for useful discussion. This work was supported by Natural Sciences and Engineering Research Council (NSERC) of Canada and Canadian Institute for Advanced Research (CIAR). One of the authors (W.A.) was supported in part by the Midwest Superconductivity Consortium through D.O.E. grant No. DE-FG-02-90ER45427.",

year = "1998",

doi = "10.1023/A:1022600421541",

language = "English",

volume = "11",

pages = "305--315",

journal = "Journal of Superconductivity",

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publisher = "Springer New York",

number = "2",

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TY - JOUR

T1 - c-Axis transport in a normal-state bilayer cuprate and relation to pseudogap

AU - Wu, W. C.

AU - Atkinson, W. A.

AU - Carbotte, J. P.

N1 - Funding Information: We thank Dwayne Branch for useful discussion. This work was supported by Natural Sciences and Engineering Research Council (NSERC) of Canada and Canadian Institute for Advanced Research (CIAR). One of the authors (W.A.) was supported in part by the Midwest Superconductivity Consortium through D.O.E. grant No. DE-FG-02-90ER45427.

PY - 1998

Y1 - 1998

N2 - We study the effect of interband transitions on the normal-state optical conductivity, dc resistivity, and thermal conductivity along the c-axis, for a plane-chain bilayer cuprate coupled by a perpendicular hopping matrix element (t⊥). When t⊥ is small, the c-axis dc resistivity shows a characteristic upturn as the temperature is lowered, and the c-axis optical conductivity develops a pseudogap at low frequencies. As t⊥ is increased, intraband transitions start to dominate and a more conventional response is obtained. Similar pseudogap behavior is predicted in the thermal conductivity for which strong depression at low temperature is found. Analytical results for a simple plane-plane bilayer are also given, including the frequency sum rule of the optical conductivity.

AB - We study the effect of interband transitions on the normal-state optical conductivity, dc resistivity, and thermal conductivity along the c-axis, for a plane-chain bilayer cuprate coupled by a perpendicular hopping matrix element (t⊥). When t⊥ is small, the c-axis dc resistivity shows a characteristic upturn as the temperature is lowered, and the c-axis optical conductivity develops a pseudogap at low frequencies. As t⊥ is increased, intraband transitions start to dominate and a more conventional response is obtained. Similar pseudogap behavior is predicted in the thermal conductivity for which strong depression at low temperature is found. Analytical results for a simple plane-plane bilayer are also given, including the frequency sum rule of the optical conductivity.

KW - High-T superconductors

KW - Transports

KW - c-axis

UR - https://www.scopus.com/pages/publications/0032046682

UR - https://www.scopus.com/pages/publications/0032046682#tab=citedBy

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DO - 10.1023/A:1022600421541

M3 - Article

AN - SCOPUS:0032046682

SN - 0896-1107

VL - 11

SP - 305

EP - 315

JO - Journal of Superconductivity

JF - Journal of Superconductivity

IS - 2

ER -

c-Axis transport in a normal-state bilayer cuprate and relation to pseudogap

Abstract

Keywords

ASJC Scopus subject areas

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