Interlayer tunnelling evidence for possible electron-boson interactions in $\rm{Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta}}$
mag(2015)
摘要
We report intrinsic tunnelling data for mesa structures fabricated on three over- and optimally-doped $\rm{Bi_{2.15}Sr_{1.85}CaCu_{2}O_{8+\delta}}$ crystals with transition temperatures of 86-80 K and 0.16-0.19 holes per CuO$_2$ unit, for a wide range of temperature ($T$) and applied magnetic field ($H$), primarily focusing on one over-doped crystal. The differential conductance above the gap edge shows clear structure with informative $T$ and $H$ dependence. Data below the gap edge imply that the tunnelling process is mainly coherent and give clear evidence for strong $T$-dependent pair breaking. These findings are important for a detailed analysis in terms of Eliashberg theory and could help to clarify the pairing mechanism.
更多查看译文
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要