Observation of the MgO (001) Surface by Atomic Force Microscope and Electron Stimulated Desorption.

Surface Analysis Studies on Polymer Electrolyte Membranes Using Scanning Electron Microscope and Atomic Force Microscope

Observation of living cells using the atomic force microscope.

We used an atomic force microscope (AFM) to image samples immersed in a fluid in order to study the dynamic behavior of the membranes of living cells. AFM images of cultured cells immersed in a buffer were obtained without any preliminary preparation. We observed surface changes and displacements which suggest that the cells were still alive during the measurements. Some membrane details imaged...

Characterization of Metallic Nanowires by Combining Atomic Force Microscope (AFM) and Scanning Electron Microscope (SEM)

A new experimental method is introduced in order to characterize the mechanical properties of metallic nanowires. An accurate mechanical characterization of nanowires requires simultaneous imaging using scanning electron microscope (SEM) and mechanical testing with an atomic force microscope (AFM). In this study, an AFM is located inside an SEM chamber in order to establish the visibility of th...

Epitaxial Ag(001) grown on MgO(001) and TiN(001): Twinning, surface morphology, and electron surface scattering

Epitaxial Ag(001) layers were deposited on MgO(001) in order to study electron surface scattering. X-ray reflection indicates 3D layer nucleation with a high rms surface roughness of 1.0 nm for a layer thickness d1⁄4 3.5 nm. X-ray diffraction shows that f111g twins form at d< 11 nm, followed by 2nd generation twinning for 11 nm< d< 120 nm. Increasing the growth temperature from 25 to 150 C supp...

Relative surface charge density mapping with the atomic force microscope.

An experimental approach for producing relative charge density maps of biological surfaces using the atomic force microscope is presented. This approach, called D minus D (D-D) mapping, uses isoforce surfaces collected at different salt concentrations to remove topography and isolate electrostatic contributions to the tip-sample interaction force. This approach is quantitative for surface poten...