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A new force controlled atomic force microscope for use in ultrahigh vacuum
Ist Teil von
Review of scientific instruments, 1996-06, Vol.67 (6), p.2281-2285
Erscheinungsjahr
1996
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
We introduce a magnetic force controlled atomic force microscope (AFM) and point contact probe for use in ultrahigh vacuum and describe how our technique can significantly enhance the current capabilities of scanning probe microscopes. The instrument is specially designed to provide quantitative information on the nature of the tip‐surface interaction. Forces are applied directly to magnetic material deposited behind the AFM tip via a current carrying coil. Oscillating the applied force and measuring the resulting displacement amplitude gives a continuous measurement of the absolute force gradient or contact stiffness. From this measurement the contact area or effective interaction area can be calculated for clean surfaces, thus eliminating the problems of unknown resolution and also facilitating the study of conduction and mechanical properties of small volumes.
Sprache
Englisch
Identifikatoren
ISSN: 0034-6748
eISSN: 1089-7623
DOI: 10.1063/1.1147047
Titel-ID: cdi_scitation_primary_10_1063_1_1147047
Format
–
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