2021/03/26 by Usha Bhat, Bhat, Usha, Ranjan Datta +2
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Advanced Electron Microscopy Techniques and Applications #Electron and X-Ray Spectroscopy Techniques #Force Microscopy Techniques and Applications
paper · pdf · doi:10.48550/arxiv.2103.14801
An alternative approach to the image simulation in high resolution\ntransmission electron microscopy (HRTEM) is introduced after comparative\nanalysis of the existing image simulation methods. The alternative method is\nbased on considering the atom center as an electrostatic interferometer akin to\nthe conventional off-axis electron biprism within few nanometers of focus\nvariation. Simulation results are compared with the experimental images of 2D\nmaterials of MoS2, BN recorded under the optimum combination of third order\nspherical aberration (Cs)= -35 micrometers and defocus = 1, 4, and 8 nm and are\nfound to be in good agreement.\n