A very low temperature STM for the local spectroscopy of mesoscopic structures

Details A very low temperature STM for the local spectroscopy of mesoscopic structures A very low temperature STM for the local spectroscopy of mesoscopic structures

2000-07-07

arxiv.org/abs/cond-mat/0007128v2

Rev. Sci. Instrum. 72, 128 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures, slightly corrected version

Scientific paper

10.1063/1.1331328

We present the design and operation of a very-low temperature Scanning Tunneling Microscope (STM) working at $60 mK$ in a dilution refrigerator. The STM features both atomic resolution and micron-sized scanning range at low temperature. This work is the first experimental realization of a local spectroscopy of mesoscopic structures at very low temperature. We present high-resolution current-voltage characteristics of tunnel contacts and the deduced local density of states of hybrid Superconductor-Normal metal systems.

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