Extended model for the interaction of dielectric thin films with an electrostatic force microscope probe
Abstract
To improve measurements of the dielectric permittivity of nanometric portions by means of Local Dielectric Spectroscopy (LDS), we introduce an extension to current analytical models for the interpretation of the interaction between the probe tip of an electrostatic force microscope (EFM) and a thin dielectric film covering a conducting substrate. Using the proposed models, we show how more accurate values for the dielectric constant can be obtained from single-frequency measurements at various probe/substrate distances, not limited to a few tip radii.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 14, 2015
- Source ID
- 10.1063/1.4937136
Entities
People
- C. Michael Roland
- D. Prevosto
- Jonathan Barsotti
- Massimiliano Labardi
- R. Casalini
- Simone Capaccioli
Organizations
- Office of Naval Research
- United States Naval Research Laboratory
- University of Pisa