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Low noise current preamplifier for qPlus sensor deflection signal detection in atomic force microscopy at room and low temperatures

Huber, Ferdinand and Giessibl, Franz J. (2017) Low noise current preamplifier for qPlus sensor deflection signal detection in atomic force microscopy at room and low temperatures. Review of Scientific Instruments 88 (7), 073702.

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Other URL: http://doi.org/10.1063/1.4993737


Abstract

The resolution of frequency modulation atomic force microscopy is limited by instrumental noise. When using a qPlus sensor, the deflection detector noise is the dominant noise contribution. It can be reduced by improving the preamplifier used to amplify the sensor deflection signal. We present a simple single-stage differential preamplifier which outperforms previous designs known to us by at ...

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Item type:Article
Date:2017
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Franz J. Giessibl
Identification Number:
ValueType
10.1063/1.4993737DOI
Keywords:QUARTZ TUNING FORK; RESOLUTION;
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:39394
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