Selected Publications
 

Laterally proximized aluminum tunnel junctions

J. V. Koski, J. T. Peltonen, M. Meschke, J. P. Pekola

This letter presents experiments on junctions fabricated by a technique that enables the use of high-quality aluminum oxide tunnel barriers with normal metal electrodes at low temperatures. Inverse proximity effect is applied to diminish the superconductivity of an aluminum dot through a clean lateral connection to a normal metal electrode. To demonstrate the effectiveness of this method, fully normal-state single electron transistors (SETs) and normal metal-insulator-superconductor (NIS) junctions applying proximized Aljunctions were fabricated. The transport characteristics of the junctions were similar to those obtained from standard theoreticalmodels of regular SETs and NIS junctions


Appl. Phys. Lett. 98, 203501 (2011)

doi: 10.1063/1.3590922