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Scanning probe microscopy (SPM) images of regularly arranged spatially periodic objects can be processed crystallographically. The resulting information may be used to remove from the SPM image distortions that are due to a less than…

Materials Science · Physics 2020-12-16 Peter Moeck

While offering unprecedented resolution of atomic and electronic structure, Scanning Probe Microscopy techniques have found greater challenges in providing reliable electrostatic characterization at the same scale. In this work, we…

A simple, reliable method for preparation of bulk Cr tips for Scanning Tunneling Microscopy (STM) is proposed and its potentialities in performing high-quality and high-resolution STM and Spin Polarized-STM (SP-STM) are investigated. Cr…

Through a simulation-based study we develop a statistical model-based quantification method for atomic resolution first moment scanning transmission electron microscopy (STEM) images. This method uses the uniformly weighted least squares…

Materials Science · Physics 2024-08-06 Yansong Hao , Annick De Backer , Scott David Findlay , Sandra Van Aert

Scanning Tunneling Microscopy (STM) is a powerful technique that utilizes quantum tunneling to visualize atomic surfaces with high precision. This study presents detailed topographic maps and evaluates the local density of states (LDOS) for…

Mesoscale and Nanoscale Physics · Physics 2024-02-19 Dhananjay Saikumar

Modeling artificial scanning electron microscope (SEM) and scanning ion microscope images has recently become important. This is because of the need to provide repeatable images with a priori determined parameters. Modeled artificial images…

Instrumentation and Detectors · Physics 2015-05-19 Petr Cizmar , Andras E. Vladar , Michael T. Postek

Fast and accurate molecular force field (FF) parameterization is still an unsolved problem. Accurate FFs are not generally available for all molecules, like novel druglike molecules. While methods based on quantum mechanics (QM) exist to…

Chemical Physics · Physics 2019-08-06 Raimondas Galvelis , Stefan Doerr , Joao M. Damas , Matt J. Harvey , Gianni De Fabritiis

Scanning tunneling microscopy (STM) and micro-electromechanical systems (MEMS) have traditionally addressed vastly different length scales - one resolving atoms, the other engineering macroscopic motion. Here we unite these two fields to…

Mesoscale and Nanoscale Physics · Physics 2026-01-09 R. J. G. Elbertse , M. Xu , A. Keşkekler , S. Otte , R. A. Norte

A major challenge in Atomic Force Microscopy (AFM) is to reduce the scan duration while retaining the image quality. Conventionally, the scan rate is restricted to a sufficiently small value in order to ensure a desirable image quality as…

Signal Processing · Electrical Eng. & Systems 2019-02-13 Kaixiang Wang , Michael G. Ruppert , Chris Manzie , Dragan Nesic , Yuen K. Yong

The rapid development of computation power and machine learning algorithms has paved the way for automating scientific discovery with a scanning probe microscope (SPM). The key elements towards operationalization of automated SPM are the…

PySCF is a general-purpose electronic structure platform designed from the ground up to emphasize code simplicity, both to aid new method development, as well as for flexibility in computational workflow. The package provides a wide range…

Atomic force microscopy (AFM) enables high-resolution imaging and quantitative force measurement, which is critical for understanding nanoscale mechanical, chemical, and biological interactions. In dynamic AFM modes, however, interaction…

Instrumentation and Detectors · Physics 2025-06-10 Simon Laflamme , Bugrahan Guner , Omur E. Dagdeviren

The simultaneous combination of scanning probe methods (tunnelling and force microscopies, STM and AFM) is a unique way to get an information about crystallographic and electronic structure of the studied surface. Here we apply these…

Materials Science · Physics 2015-02-04 Petar Stojanov , Elena Voloshina , Yuriy Dedkov , Stefan Schmitt , Torben Haenke , Andreas Thissen

We present a theory for analyzing residence times of single molecules in a fixed detection area of a scanning tunneling microscope (STM). The approach is developed for one-dimensional molecule diffusion and can be extended to two dimensions…

Mesoscale and Nanoscale Physics · Physics 2022-08-23 Christoph Schiel , Philipp Rahe , Philipp Maass

Data-driven schemes that associate molecular and crystal structures with their microscopic properties share the need for a concise, effective description of the arrangement of their atomic constituents. Many types of models rely on…

Machine Learning · Statistics 2022-06-08 Jigyasa Nigam , Sergey Pozdnyakov , Guillaume Fraux , Michele Ceriotti

Artificial Neural Networks (ANN) have been popularized in many science and technological areas due to their capacity to solve many complex pattern matching problems. That is the case of Virtual Screening, a research area that studies how to…

Neural and Evolutionary Computing · Computer Science 2020-06-05 Christian F. Frasser , Carola de Benito , Vincent Canals , Miquel Roca , Pedro J. Ballester , Josep L. Rossello

Biological screens are plagued by false positive hits resulting from aggregation. Thus, methods to triage small colloidally aggregating molecules (SCAMs) are in high demand. Herein, we disclose a bespoke machine-learning tool to confidently…

Quantitative Methods · Quantitative Biology 2021-05-04 Kuan Lee , Ann Yang , Yen-Chu Lin , Daniel Reker , Goncalo J. L. Bernardes , Tiago Rodrigues

Accurate characterization of carbon nanotube morphologies in electron microscopy images is vital for exposure assessment and toxicological studies, yet current workflows rely on slow, subjective manual segmentation. This work presents a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Sanjay Pradeep , Chen Wang , Matthew M. Dahm , Jeff D. Eldredge , Candace S. J. Tsai

Atomic-scale defect detection is shown in scanning tunneling microscopy images of single crystal WSe2 using an ensemble of U-Net-like convolutional neural networks. Standard deep learning test metrics indicated good detection performance…

The construction industry represents a major sector in terms of resource consumption. Recycled construction material has high reuse potential, but quality monitoring of the aggregates is typically still performed with manual methods.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Yu Zhou , Pelle Thielmann , Ayush Chamoli , Bruno Mirbach , Didier Stricker , Jason Rambach
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