Josephson Junctions defined by a Nano-Plough

Abstract

We define superconducting constrictions by ploughing a deposited Aluminum film with a scanning probe microscope. The microscope tip is modified by electron beam deposition to form a nano-plough of diamond-like hardness, what allows the definition of highly transparent Josephson junctions. Additionally a dc-SQUID is fabricated to verify appropriate functioning of the junctions. The devices are easily integrated in mesoscopic devices as local radiation sources and can be used as tunable on-chip millimeter wave sources.

References in corpus (1)

• Theory of AC Josepson Effect in Superconducting Constrictions

Cited by in corpus (6)

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• Microwave spectroscopy on a double quantum dot with an on-chip Josephson oscillator
• Nano-ploughed Josephson Junctions as on-chip Radiation Sources
• MgB2 radio-frequency superconducting quantum interference device prepared by atomic force microscope lithography