Local-charge-density transfer and organic superconductivity: A positron study

Y. Lou, H. L. Yen, J. M. Wrobel, H. Zhang, Y. C. Jean, G. Saito, Z. J. Huang, C. W. Chu

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

The temperature dependence between 4 and 294 K of the positron lifetime is measured in the organic superconductor -(BEDT-TTF)2Cu(NCS)2. The lifetime decreases rapidly with temperature from 350 to 343 ps below Tc, and increases monotonically above Tc to 372 ps. These experimental results are interpreted in terms of a transfer in the local charge density of organic superconductors associated with the superconducting transition. Theoretical positron density and positron-electron overlap distributions are calculated to support this interpretation.

原文English
頁(從 - 到)12255-12258
頁數4
期刊Physical Review B
49
發行號17
DOIs
出版狀態Published - 1994

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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