Search for: diamond-tip
Simulation of imaging in tapping-mode atomic-force microscopy: A comparison amongst a variety of approaches, Article Journal of Physics D: Applied Physics ; Volume 44, Issue 7 , February , 2011 ; 00223727 (ISSN) ; Mahboobi, S. H ; Meghdari, A ; Sharif University of Technology
Models capable of accurate simulation of microcantilever dynamics coupled with complex tip-sample interactions are essential for interpretation and prediction of the imaging results in amplitude modulation or tapping-mode atomic-force microscopy (AM-AFM or TM-AFM). In this paper, four approaches based on combinations of lumped and finite element methods for modelling of cantilever dynamics, and van derWaals and molecular dynamics for modelling of tip-sample interactions, are used to simulate the precise imaging by AM-AFM. Based on the simulated imaging and force determination, the efficiency of different modelling schemes is evaluated. This comparison is performed considering their...
Hybrid finite-element method-molecular dynamics approach for modelling of non-contact atomic force microscopy imaging, Article Micro and Nano Letters ; Volume 6, Issue 6 , June , 2011 , Pages 412-416 ; 17500443 (ISSN) ; Mahboobi, S. H ; Meghdari, A ; Sharif University of Technology
Models capable of accurate simulation of the microcantilever dynamics coupled with complex tip-sample interactions are essential for interpretation of the imaging results in non-contact atomic force microscopy (AFM). In the present research, a combination of finite element and molecular dynamics methods are used for modelling the AFM system to overcome the drawbacks of conventional approaches that use a lumped system with van der Waals interaction. To illustrate the ability of the proposed scheme in providing images with atomic resolution, some simulations have been performed. In the conducted simulations, a diamond tip is interacting with nickel samples having different surface plane...