Features of application of the method of particles for modelling the process of isolation probes for electrochemical STM

Questions of application of a method of particles for studying of the process of electrochemical STM probe isolation are considered in the paper. Isolation of the probe edge takes place at immersion of its blank into the cooling-down drop of an apiyezon L. Therefore the problem of modeling of the behavior of this drop and its interaction with STM probe edge is actual. The method of particles with use of Lennard-Jones potential is applied for modeling of behavior of the drop of the isolating material (apiyezon L). Also a natural experiment is described on measurement of a surface tension of the apiyezon drop at temperatures close real isolation process temperatures. Measurements of the surface tension were performed by method of a hanging drop, put forward and proved by Fordham. In a computer experiment the similar conditions were reproduced. The method of a hanging drop is also applied to measurement of a surface tension of a model drop, and determination of its temperature is fulfilled according to the Eötvös rule. The given results of theoretical and natural studies of dependence on temperature of the surface tension of the drop of an apiyezon L were significantly close, and it allows to claim that application of a method of particles when modeling the drops of the isolating substance correctly reflects their real properties, significant for isolation of STM probes.