Combined scanning force microscopy and scanning tunneling spectroscopy of an electronic nano-circuit at very low temperature

Abstract

We demonstrate the combination of scanning force microscopy and scanning tunneling spectroscopy in a local probe microscope operating at very low temperature (60 mK). This local probe uses a quartz tuning fork ensuring high tunnel junction stability. We performed the spatially-resolved spectroscopic study of a superconducting nano-circuit patterned on an insulating substrate. Significant deviations from the BCS prediction are observed.

4 pages

References in corpus (3)

• Advances in atomic force microscopy
• Scanning Tunneling Spectroscopy of the superconducting proximity effect in a diluted ferromagnetic alloy
• Low-temperature, high-resolution magnetic force microscopy using a quartz tuning fork

Cited by in corpus (7)

• Phase controlled superconducting proximity effect probed by tunneling spectroscopy
• Dynamics of quartz tuning fork force sensors used in scanning probe microscopy
• On the imaging of electron transport in semiconductor quantum structures by scanning-gate microscopy: successes and limitations
• Absence of edge reconstruction for quantum Hall edge channels in graphene devices
• Non-invasive nanoscale potentiometry and ballistic transport in epigraphene nanoribbons
• A Transimpedance Amplifier for Remotely Located Quartz Tuning Forks
• A subKelvin scanning probe microscope for the electronic spectroscopy of an individual nano-device