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Scanning Tunneling Microscope For Use In VacuumScanning tunneling microscope with subangstrom resolution developed to study surface structures. Although instrument used in air, designed especially for use in vacuum. Scanning head is assembly of small, mostly rigid components made of low-outgassing materials. Includes coarse-positioning mechanical-translation stage, on which specimen mounted by use of standard mounting stub. Tunneling tip mounted on piezoelectric fine-positioning tube. Application of suitable voltages to electrodes on piezoelectric tube controls scan of tunneling tip across surface of specimen. Electronic subsystem generates scanning voltages and collects data.
Document ID
19930000569
Document Type
Other - NASA Tech Brief
Authors
Abel, Phillip B. (NASA Lewis Research Center, Cleveland, OH.)
Date Acquired
August 16, 2013
Publication Date
September 1, 1993
Publication Information
Publication: NASA Tech Briefs
Volume: 17
Issue: 9
ISSN: 0145-319X
Subject Category
PHYSICAL SCIENCES
Report/Patent Number
LEW-15190
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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