Abstract Electrostatic force microscopy at cryogenic temperatures is used to probe the electrostatic interaction of a conductive atomic force microscopy tip and electronic charges trapped in localized states in an insulating layer on a semiconductor. Measurement of the frequency shift of the cantilever as a function of tip-sample shows discrete peaks at certain voltages when the tip is located ...

Using the bispherical coordinate system, an analytical solution describing the electrostatic force between a charged dielectric sphere and a planar dielectric surface is presented. This new solution exhibits excellent numerical convergence, and is sufficiently general as to allow for the presence of charge on both the sphere and the surface. The solution has been applied to two examples of sphe...

It is well known that the gravitational field modifies the electrostatic interaction of a charged particle in such a way that the particle experiences a finite self-force [1,2]. The origin of this force comes from the space-time curvature associated with the gravitational field. On the other hand, even in the absence of curvature, such as in the conical space-time of an infinite straight cosmic...

This study is devoted to providing predictions of the pull-in parameters (pull-in voltage and pull-in displacement) of electro-statically actuated micro-beams based on a continuous model using Genetic Algorithm (GA) technique. A phenomenon in which the actuated electrode comes in direct contact with the fixed electrode due to the electrostatic force is called pull-in instability. Accurate deter...

We study the electrostatic interaction between two ionic surfactant layers by performing molecular dynamic simulations of salt-free thin water films coated by surfactants (Newton black films). We find a strong exponentially decaying short-range repulsion not explained by classical Poisson-Boltzmann theory. This electrostatic force is shown to be mainly due to the anomalous dielectric response o...

This paper presents a feasibility study for applying electrostatic actuators on wall climbing robot (WCR). These film actuators have generated useful level of attachment force on vertical wall surface. It works on non-conductive surface such as ceramic tiles. The confirmed advantages of electrostatic adhesion are encouraging for the development of WCR. Design considerations for the WCR are also...