Unusual magnetic-field dependence of the electrothermal conductivity in the mixed state of cuprate superconductors

J. Clayhold, Y. Xue, C. Chu, J. Eckstein, I. Bozovic

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

In the mixed state of a superconductor, the electrothermal conductivity, P, which measures the electrical current density produced by a thermal gradient, is supposed to be independent of both the magnetic field and the details of the vortex motion. Measurements of the thermopower and resistivity in (Formula presented)(Formula presented)(Formula presented), (Formula presented)(Formula presented)(Formula presented)(Formula presented), and (Formula presented)(Formula presented)(Formula presented)(Formula presented) show an unusual, sharp structure in P at low field. In (Formula presented)(Formula presented)(Formula presented)(Formula presented), the extra contribution is negative, causing a sign change of the thermopower versus applied magnetic field. The possible origins of the low-field anomaly are discussed.

原文English
頁(從 - 到)8681-8686
頁數6
期刊Physical Review B - Condensed Matter and Materials Physics
53
發行號13
DOIs
出版狀態Published - 1996

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

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