聚焦离子束生长非晶薄膜边界处的超导态密度
Superconducting density of states at the border of an amorphous thin film grown by focused-ion-beam
摘要：
本文报道了用聚焦离子束生长的钨基非晶薄膜的超低温扫描隧道显微镜和光谱（STM/S）测量结果。特别是，我们解决的超导性质接近的边界，在那里的超导膜的厚度减小，和Au基板出现。当接近Au衬底时，超导隧穿电导在费米能级附近强烈增加，准粒子峰的位置没有明显变化。在磁场下，观察到涡旋晶格，涡旋位置非常接近Au衬底。
英文摘要：
We present very low temperature Scanning Tunneling Microscopy and Spectroscopy (STM/S) measurements of a W based amorphous thin film grown with focused-ion-beam. In particular, we address the superconducting properties close to the border, where the thickness of the superconducting film decreases, and the Au substrate emerges. When approaching the Au substrate, the superconducting tunneling conductance strongly increases around the Fermi level, and the quasiparticle peaks do not significantly change its position. Under magnetic fields, the vortex lattice is observed, with vortices positioned very close to the Au substrate.
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