2024
DOI: 10.7498/aps.73.20240560
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Low-noise preamplifier for scanning tunneling microscope

Hai-Tao Tang,
Zhuang Mi,
Wen-Yu Wang
et al.

Abstract: The current preamplifier is one of the important components of the scanning tunneling microscope (STM), and its performance is crucial to the basic operations of the STM system, as well as for the development of demanding novel functionalities such as autonomous atomic fabrication. In this study, the factors that affect the performance of a current preamplifier including its noise spectrum density and the bandwidth were thoroughly analyzed, and a preamplifier was designed and fabricated specifically for STM sy… Show more

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