標題: | Tunneling measurements of fluctuation effects near the superconductor to insulator transition |
作者: | Hsu, SY Chervenak, JA Valles, JM 電子物理學系 Department of Electrophysics |
公開日期: | 1-十月-1998 |
摘要: | We present measurements of the temperature dependence of the tunneling density of states near the Fermi energy, G(o)(T), and resistive transitions, R(T), of ultrathin PbBi films. Both R(T) and G(o)(T) broaden substantially near the superconductor to insulator transition (SIT). The broadening in R(TI is not affected by the proximity of a ground plane suggesting that long range Coulomb interactions are not important to the SIT. The results suggest that the transport properties of Alms near the SIT are influenced by fluctuations in both the phase and the amplitude of the order parameter. We discuss the data in terms of recent theories of the superconducting transition in low superfluid density systems. (C) 1998 Elsevier Science Ltd. All rights reserved. |
URI: | http://hdl.handle.net/11536/31825 |
ISSN: | 0022-3697 |
期刊: | JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS |
Volume: | 59 |
Issue: | 10-12 |
起始頁: | 2065 |
結束頁: | 2067 |
顯示於類別: | 會議論文 |