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Scientific article
English

A versatile low‐temperature scanning tunneling microscope

Publication date1990
Abstract

We present a new scanning tunneling microscope (STM) developed specifically for use at low temperatures within a standard helium cryostat. This compact STM (diameter 25 mm and length 61 mm) has been designed to be compatible with a superconducting magnet. It incorporates a novel approach system which operates in any orientation including the vertical one, without any mechanical connections to the STM. It is able to translate a sample by 30 Å steps in any orientation. The coarse and the fine approach are driven by a single piezoelectric tube via inertial slip‐stick motion of the sample holder. During the coarse approach, the translator can be moved over 15 mm at 0.25 mm/s against gravity. We have operated this STM down to 1.6 K and we have obtained images with atomic resolution on highly oriented pyrolitic graphite (HOPG) and NbSe2 from 300 K down to 90 K. This partially thermal compensated instrument is able to monitor temperature dependent surface changes on atomic scale in real time.

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Citation (ISO format)
RENNER, Christoph et al. A versatile low‐temperature scanning tunneling microscope. In: Journal of Vacuum Science & Technology. A: Vacuum, Surfaces, and Films, 1990, vol. 8, n° 1, p. 330–332. doi: 10.1116/1.577100
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accessLevelRestricted
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ISSN of the journal1520-8559
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