Superconducting density of states at the border of an amorphous thin film grown by focused-ion-beam

Autor:	Guillamon, I., Suderow, H., Vieira, S., Fernandez-Pacheco, A., Sese, J., Cordoba, R., De Teresa, J. M., Ibarra, M. R.
Rok vydání:	2009
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
DOI:	10.1088/1742-6596/150/5/052064
Popis:	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. Comment: To appear in Journal of Physics: Conference series
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0902.4090 Zobrazit plný text záznamu View this record from Arxiv