The tension/compression asymmetries of materials, i.e., changing the mechanism loading directions while keeping all other parameters identical, is particularly interesting as it provides insight into the elementary defect mechanisms. In a recent work published in Acta Materialia (click here), CENEM ...
Local electrostatic field at sharp field emission tips is key to answer fundamental questions of how the field interacts with these tips. Despite a long history of study, three-dimensional (3D) electrostatic fields at nanometer resolution around sharp tips have not been experimentally quantified. Si...
Self-assembly processes play an important role in nature and often result in complex structures, e.g. in chlorophyll or in living organisms. Compact clusters of elemental particles can be shown to be of practical relevance, and are found in atomic nuclei, nanoparticles or viruses.
Self-as...
In the 1940s, scientists first explained how Materials can deform plastically by atomic-scale line defects called dislocations. These defects can be understood as tiny carpet folds that can move one part of a material relative to the other without spending a lot of energy. Many technical application...
In the research paper Thomas Przybilla, Benjamin Apeleo Zubiri and co-workers present a versatile approach that provides a general routine for advanced 3D characterization of micro- and nanoparticles. The method which was developed at IMN and CENEM involves the transfer of individual particles onto ...
Researchers at CENEM have recently reported the direct observation of nucleation and propagation of basal plane dislocations in Nb2AlC, a member of MAX phases, using nanomechanical testing inside a transmission electron microscope.
MAX Phases (with M an early transition metal, A an A group elemen...
High-resolution X-ray tomography reveals how butterflies form their iridescent wing scales.
It has only been one year since the material scientists around Prof. Erdmann Spiecker from the Center for Nanoanalysis and Electron Microscopy (CENEM) at the FAU Erlangen-Nuremberg had been granted funding f...
A research article "A Novel Approach for Preparation and In Situ Tensile Testing of Silica Glass Membranes in the Transmission Electron Microscope" by our colleagues Mirza Mačković, Thomas Przybilla, Christel Dieker, Patrick Herre, Stefan Romeis, Hana Stara, Nadine Schrenker, Wolfgang Peukert and Er...
Research article "Correlative micro-diffraction and differential phase contrast study of mean inner potential and subtle beam-specimen interaction", by CENEM members Mingjian Wu and Erdmann Spiecker, has been accepted for publication in the journal Ultramicroscopy.
Probing nanometer scale electro...
Research article "Local temperature measurement in TEM by parallel beam electron diffraction" by CENEM researchers Florian Niekiel, Simon M. Kraschewski, Julian Müller, Benjamin Butz, and Erdmann Spiecker, has been accepted for publication in the journal Ultramicroscopy.
In this work the applicab...
