par Leo, Vito 
Référence Review of scientific instruments, 53, 7, page (997-1000)
Publication Publié, 1982
Référence Review of scientific instruments, 53, 7, page (997-1000)
Publication Publié, 1982
Article révisé par les pairs
| Résumé : | In this paper we present the description of a point contact spectrometer which allows us to realize tunnel junctions (sample/Al oxide/Al) by mechanically approaching the sample (mounted as a moving electrode) to an oxidized Al counterelectrode. Due to the design, the careful choice of materials, and the use of a very accurate driving system (with an approach detecting feedback) this spectrometer is extremely efficient over a wide temperature range. The particular geometry makes possible the study of tunnel characteristics on single crystals of compounds that do not stand vacuum evaporation, usually involved in standard thin-film tunnel technique. |
