Room-temperature tunnel current amplifier and experimental setup for high resolution electronic spectroscopy in millikelvin STM experiments

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dc.creatorSueur, H. Le
dc.creatorJoyez, P.
dc.date2006-10-31
dc.date2007-01-03
dc.date.accessioned2026-07-07T07:38:03Z
dc.date.available2026-07-07T07:38:03Z
dc.descriptionThe spectroscopic resolution of tunneling measurements performed with a scanning tunneling microscope is ultimately limited by the temperature at which the experiment is performed. To take advantage of the potential high spectroscopic resolution associated with operating an STM in a dilution refrigerator we have designed a room temperature tunnel current amplifier having very small back-action on the tunnel contact and allowing to nearly reach the predicted energy resolution. This design is a modification of the standard op-amp based tip-biasing current-voltage converter which implements differential voltage sensing and whose back action on the tip voltage is only ~2 $μ$V rms for a 14 MV/A transimpedance and 22 kHz bandwidth.
dc.descriptionAvailable at http://www-spht.cea.fr/articles/s06/033
dc.identifierhttps://arxiv.org/abs/physics/0610280
dc.identifierhttp://arxiv.org/abs/physics/0610280
dc.identifierReview of Scientific Instruments 77 (12/2006) 123701
dc.identifierdoi:10.1063/1.2400024
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/120984
dc.subjectInstrumentation and Detectors
dc.titleRoom-temperature tunnel current amplifier and experimental setup for high resolution electronic spectroscopy in millikelvin STM experiments
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