Accession Number : ADA182482

Title :   Atomic Force Microscopy of Liquid-Covered Surfaces: Atomic Resolution Images.

Descriptive Note : Technical rept. 1 Feb 85-31 Jan 87,

Corporate Author : CALIFORNIA UNIV SANTA BARBARA DEPT OF PHYSICS

Personal Author(s) : Marti,O ; Drake,B ; Hansma,P K

PDF Url : ADA182482

Report Date : 19 Jun 1987

Pagination or Media Count : 14

Abstract : Images of graphite surfaces that are covered with oil reveal hexagonal rings of carbon atoms. Images of a sodium chloride, surface, protected from moisture by oil, exhibit a mono-atomic step. Together, these images demonstrate the potential of Atomic Force Microscopy (AFM) for studying both conducting and non-conducting surfaces - even surfaces covered with liquids. Our AFM uses a cross of double wires with an attached diamond stylus as a force sensor. The force constant is approximately 40 N/m. The resonant frequency is approximately 3 kHz. The lateral and vertical resolutions are 0.15 and 5 pm.

Descriptors :   *RESONANT FREQUENCY, *SODIUM CHLORIDE, *CARBON, DIAMONDS, RECORDING SYSTEMS, SURFACES, GRAPHITE, MOISTURE, OILS, ATOMS, DETECTORS, FORCE(MECHANICS), RINGS

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE