Process optimization of broad ion beam milling for preparation of coating cross-sections
Ultramicroscopy. 2023 Sep 22;255:113858. doi: 10.1016/j.ultramic.2023.113858. Online ahead of print.ABSTRACTThe application of Argon ion based broad ion beam milling in the preparation of coating cross-sections is systematically evaluated in this work. In order to reduce and eliminate defects and artefacts from the prepared sectional surface, the substrate side of the sample is found to be best facing the ion beams, and the milling time needs to be optimized to be not too long to introduce scratching of the obtained surface, while not too short to result in particle deposition. Further, the energy of the ion beams is found...
Source: Ultramicroscopy - October 2, 2023 Category: Laboratory Medicine Authors: Nils Timmermans Mike van Meer Remco Okhuijsen Qi Chen Source Type: research
Haptic sensation-based scanning probe microscopy: Exploring perceived forces for optimal intuition-driven control
Ultramicroscopy. 2023 Sep 22;255:113856. doi: 10.1016/j.ultramic.2023.113856. Online ahead of print.ABSTRACTWe demonstrate a cryogenic scanning probe microscope (SPM) that has been modified to be controlled with a haptic device, such that the operator can 'feel' the surface of a sample under investigation. This system allows for direct tactile sensation of the atoms in and on top of a crystal, and allows the operator to perceive, by using different SPM modalities, sensations that are representative of the relevant atomic forces and tunneling processes controlling the SPM. In particular, we operate the microscope in modes o...
Source: Ultramicroscopy - October 2, 2023 Category: Laboratory Medicine Authors: M Freeman R Applestone W Behn V Brar Source Type: research
Process optimization of broad ion beam milling for preparation of coating cross-sections
Ultramicroscopy. 2023 Sep 22;255:113858. doi: 10.1016/j.ultramic.2023.113858. Online ahead of print.ABSTRACTThe application of Argon ion based broad ion beam milling in the preparation of coating cross-sections is systematically evaluated in this work. In order to reduce and eliminate defects and artefacts from the prepared sectional surface, the substrate side of the sample is found to be best facing the ion beams, and the milling time needs to be optimized to be not too long to introduce scratching of the obtained surface, while not too short to result in particle deposition. Further, the energy of the ion beams is found...
Source: Ultramicroscopy - October 2, 2023 Category: Laboratory Medicine Authors: Nils Timmermans Mike van Meer Remco Okhuijsen Qi Chen Source Type: research
Haptic sensation-based scanning probe microscopy: Exploring perceived forces for optimal intuition-driven control
Ultramicroscopy. 2023 Sep 22;255:113856. doi: 10.1016/j.ultramic.2023.113856. Online ahead of print.ABSTRACTWe demonstrate a cryogenic scanning probe microscope (SPM) that has been modified to be controlled with a haptic device, such that the operator can 'feel' the surface of a sample under investigation. This system allows for direct tactile sensation of the atoms in and on top of a crystal, and allows the operator to perceive, by using different SPM modalities, sensations that are representative of the relevant atomic forces and tunneling processes controlling the SPM. In particular, we operate the microscope in modes o...
Source: Ultramicroscopy - October 2, 2023 Category: Laboratory Medicine Authors: M Freeman R Applestone W Behn V Brar Source Type: research
Process optimization of broad ion beam milling for preparation of coating cross-sections
Ultramicroscopy. 2023 Sep 22;255:113858. doi: 10.1016/j.ultramic.2023.113858. Online ahead of print.ABSTRACTThe application of Argon ion based broad ion beam milling in the preparation of coating cross-sections is systematically evaluated in this work. In order to reduce and eliminate defects and artefacts from the prepared sectional surface, the substrate side of the sample is found to be best facing the ion beams, and the milling time needs to be optimized to be not too long to introduce scratching of the obtained surface, while not too short to result in particle deposition. Further, the energy of the ion beams is found...
Source: Ultramicroscopy - October 2, 2023 Category: Laboratory Medicine Authors: Nils Timmermans Mike van Meer Remco Okhuijsen Qi Chen Source Type: research
Haptic sensation-based scanning probe microscopy: Exploring perceived forces for optimal intuition-driven control
Ultramicroscopy. 2023 Sep 22;255:113856. doi: 10.1016/j.ultramic.2023.113856. Online ahead of print.ABSTRACTWe demonstrate a cryogenic scanning probe microscope (SPM) that has been modified to be controlled with a haptic device, such that the operator can 'feel' the surface of a sample under investigation. This system allows for direct tactile sensation of the atoms in and on top of a crystal, and allows the operator to perceive, by using different SPM modalities, sensations that are representative of the relevant atomic forces and tunneling processes controlling the SPM. In particular, we operate the microscope in modes o...
Source: Ultramicroscopy - October 2, 2023 Category: Laboratory Medicine Authors: M Freeman R Applestone W Behn V Brar Source Type: research
Atom counting from a combination of two ADF STEM images
Ultramicroscopy. 2023 Sep 23;255:113859. doi: 10.1016/j.ultramic.2023.113859. Online ahead of print.ABSTRACTTo understand the structure-property relationship of nanostructures, reliably quantifying parameters, such as the number of atoms along the projection direction, is important. Advanced statistical methodologies have made it possible to count the number of atoms for monotype crystalline nanoparticles from a single ADF STEM image. Recent developments enable one to simultaneously acquire multiple ADF STEM images. Here, we present an extended statistics-based method for atom counting from a combination of multiple statis...
Source: Ultramicroscopy - October 1, 2023 Category: Laboratory Medicine Authors: D G Şentürk C P Yu A De Backer S Van Aert Source Type: research
Atom counting from a combination of two ADF STEM images
Ultramicroscopy. 2023 Sep 23;255:113859. doi: 10.1016/j.ultramic.2023.113859. Online ahead of print.ABSTRACTTo understand the structure-property relationship of nanostructures, reliably quantifying parameters, such as the number of atoms along the projection direction, is important. Advanced statistical methodologies have made it possible to count the number of atoms for monotype crystalline nanoparticles from a single ADF STEM image. Recent developments enable one to simultaneously acquire multiple ADF STEM images. Here, we present an extended statistics-based method for atom counting from a combination of multiple statis...
Source: Ultramicroscopy - October 1, 2023 Category: Laboratory Medicine Authors: D G Şentürk C P Yu A De Backer S Van Aert Source Type: research
Direct motif extraction from high resolution crystalline STEM images
Ultramicroscopy. 2023 Dec;254:113827. doi: 10.1016/j.ultramic.2023.113827. Epub 2023 Aug 5.ABSTRACTDuring the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed, e.g., unsupervised primitive unit cell extraction and automated crystal distortion and defects detection. However, an automatic, unsupervised motif extraction method is still not widely available yet. Here, we propose and demonstrate a novel method for the automatic motif extraction in real space from crystalline images based on a variational approach involving the unit cell projection operator. Due to...
Source: Ultramicroscopy - September 16, 2023 Category: Laboratory Medicine Authors: Amel Shamseldeen Ali Alhassan Siyuan Zhang Benjamin Berkels Source Type: research
Direct motif extraction from high resolution crystalline STEM images
Ultramicroscopy. 2023 Dec;254:113827. doi: 10.1016/j.ultramic.2023.113827. Epub 2023 Aug 5.ABSTRACTDuring the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed, e.g., unsupervised primitive unit cell extraction and automated crystal distortion and defects detection. However, an automatic, unsupervised motif extraction method is still not widely available yet. Here, we propose and demonstrate a novel method for the automatic motif extraction in real space from crystalline images based on a variational approach involving the unit cell projection operator. Due to...
Source: Ultramicroscopy - September 16, 2023 Category: Laboratory Medicine Authors: Amel Shamseldeen Ali Alhassan Siyuan Zhang Benjamin Berkels Source Type: research
Direct motif extraction from high resolution crystalline STEM images
Ultramicroscopy. 2023 Dec;254:113827. doi: 10.1016/j.ultramic.2023.113827. Epub 2023 Aug 5.ABSTRACTDuring the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed, e.g., unsupervised primitive unit cell extraction and automated crystal distortion and defects detection. However, an automatic, unsupervised motif extraction method is still not widely available yet. Here, we propose and demonstrate a novel method for the automatic motif extraction in real space from crystalline images based on a variational approach involving the unit cell projection operator. Due to...
Source: Ultramicroscopy - September 16, 2023 Category: Laboratory Medicine Authors: Amel Shamseldeen Ali Alhassan Siyuan Zhang Benjamin Berkels Source Type: research
Direct motif extraction from high resolution crystalline STEM images
Ultramicroscopy. 2023 Dec;254:113827. doi: 10.1016/j.ultramic.2023.113827. Epub 2023 Aug 5.ABSTRACTDuring the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed, e.g., unsupervised primitive unit cell extraction and automated crystal distortion and defects detection. However, an automatic, unsupervised motif extraction method is still not widely available yet. Here, we propose and demonstrate a novel method for the automatic motif extraction in real space from crystalline images based on a variational approach involving the unit cell projection operator. Due to...
Source: Ultramicroscopy - September 16, 2023 Category: Laboratory Medicine Authors: Amel Shamseldeen Ali Alhassan Siyuan Zhang Benjamin Berkels Source Type: research
Direct motif extraction from high resolution crystalline STEM images
Ultramicroscopy. 2023 Dec;254:113827. doi: 10.1016/j.ultramic.2023.113827. Epub 2023 Aug 5.ABSTRACTDuring the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed, e.g., unsupervised primitive unit cell extraction and automated crystal distortion and defects detection. However, an automatic, unsupervised motif extraction method is still not widely available yet. Here, we propose and demonstrate a novel method for the automatic motif extraction in real space from crystalline images based on a variational approach involving the unit cell projection operator. Due to...
Source: Ultramicroscopy - September 16, 2023 Category: Laboratory Medicine Authors: Amel Shamseldeen Ali Alhassan Siyuan Zhang Benjamin Berkels Source Type: research
Direct motif extraction from high resolution crystalline STEM images
Ultramicroscopy. 2023 Dec;254:113827. doi: 10.1016/j.ultramic.2023.113827. Epub 2023 Aug 5.ABSTRACTDuring the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed, e.g., unsupervised primitive unit cell extraction and automated crystal distortion and defects detection. However, an automatic, unsupervised motif extraction method is still not widely available yet. Here, we propose and demonstrate a novel method for the automatic motif extraction in real space from crystalline images based on a variational approach involving the unit cell projection operator. Due to...
Source: Ultramicroscopy - September 16, 2023 Category: Laboratory Medicine Authors: Amel Shamseldeen Ali Alhassan Siyuan Zhang Benjamin Berkels Source Type: research
Direct motif extraction from high resolution crystalline STEM images
Ultramicroscopy. 2023 Dec;254:113827. doi: 10.1016/j.ultramic.2023.113827. Epub 2023 Aug 5.ABSTRACTDuring the last decade, automatic data analysis methods concerning different aspects of crystal analysis have been developed, e.g., unsupervised primitive unit cell extraction and automated crystal distortion and defects detection. However, an automatic, unsupervised motif extraction method is still not widely available yet. Here, we propose and demonstrate a novel method for the automatic motif extraction in real space from crystalline images based on a variational approach involving the unit cell projection operator. Due to...
Source: Ultramicroscopy - September 16, 2023 Category: Laboratory Medicine Authors: Amel Shamseldeen Ali Alhassan Siyuan Zhang Benjamin Berkels Source Type: research
