δ-Influence on the pressure-effect on Tc of HgBa2CuO4+δ and the inverse parabolic Tc-relation

C. W. Chu, Y. Cao, Q. Xiong, Y. Y. Xue

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5 引文 斯高帕斯(Scopus)

摘要

We have observed a δ-independent linear pressure effect on Tc of HgBa2CuO4+δ under hydrostatic pressures up to 1.7 GPa for δ≤0.30 but a nonlinear effect for δ>0.30. These results, together with previous doping data, show a possible non-rigidity of the electron bands of the compounds, based on which previous phenomenological models of the pressure effect on Tc are built, and thus suggest only a restricted universality for the inverse parabolic relation between Tc and charge carriers per CuO2-layer. In other words, factors in addition to charge carriers can affect high temperature superconductivity.

原文English
頁(從 - 到)393-396
頁數4
期刊Journal of Superconductivity
8
發行號4
DOIs
出版狀態Published - 1995 8月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 物理與天文學(雜項)

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