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A very low temperature scanning tunnelling microscope for the local spectroscopy of mesoscopic structures.

Author(s) : MOUSSY N., COURTOIS H., PANNETIER B.

Type of article: Article

Summary

The authors present the design and operation of a very low temperature scanning tunnelling microscope (STM) working at 60 mK in a dilution refrigerator. The STM features both atomic resolution and micro-sized scanning range at low temperature. An efficient thermalization of the sample while maintaining a clean surface for STM imaging has been achieved. The spectroscopic data show unprecedented energy resolution. Current-voltage characteristics and the deduced local density of states of hybrid superconductor-normal metal systems are presented. This work is the first experimental realization of a local spectroscopy of mesoscopic structures at very low temperature.

Details

  • Original title: A very low temperature scanning tunnelling microscope for the local spectroscopy of mesoscopic structures.
  • Record ID : 2003-0003
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 72 - n. 1
  • Publication date: 2001/01
  • Document available for consultation in the library of the IIR headquarters only.

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