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Thermal conductivity of an untwinned YBa2Cu3O7−δ single crystal and a new interpretation of the superconducting state thermal transportThermal conductivity of an untwinned YBa2Cu3O7−delta single crystal and a new interpretation of the superconducting state thermal transport
- Other Titles
- Thermal conductivity of an untwinned YBa2Cu3O7−delta single crystal and a new interpretation of the superconducting state thermal transport
- Authors
- R. C. Yu; M. B. Salamon; Jian Ping Lu; W. C. Lee
- Issue Date
- Aug-1992
- Publisher
- AMER PHYSICAL SOC
- Keywords
- HIGH-TC SUPERCONDUCTORS; ANISOTROPY; LATTICE; CUPRATE; OXIDES
- Citation
- PHYSICAL REVIEW LETTERS, v.69, no.9, pp 1431 - 1434
- Pages
- 4
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 69
- Number
- 9
- Start Page
- 1431
- End Page
- 1434
- ISSN
- 0031-9007
- Abstract
- We have measured the anisotropic thermal conductivity of an untwinned single crystal of YBa2Cu3O7-delta in the most conducting a-b plane from 14 to 200 K. Unlike previous analyses, ours attributes the observed rapid rise in thermal conductivity in the superconducting state to the electronic contribution of the Cu-O plane. We propose that strong suppression of the quasiparticle scattering rate with decreasing temperature is responsible for the large enhancement of the superconducting-state thermal conductivity.
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