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 |
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頁(從 - 到) | 12255-12258 |
頁數 | 4 |
期刊 | Physical Review B |
卷 | 49 |
發行號 | 17 |
DOIs | |
出版狀態 | Published - 1994 |
All Science Journal Classification (ASJC) codes
- 凝聚態物理學