Berlin University Allianceberlin-university-alliance.de
Research Assistant
- Location
- Berlin
- Remote
- On-site
- Employment type
- Full-time
- Experience
- Mid-Level
- Field
- Social Work & Pedagogy
- Application deadline
- Sep 11, 2026
Today
Technische Universität Berlin
Faculty II - Mathematics and Natural Sciences, Institute of Physics and Astronomy
Research Assistant - 0.75 working-time
About us
The position is embedded in the Emmy Noether Independent Junior Research Group led by Dr. Laura Niermann. The group focuses on the numerical inversion of dynamical electron diffraction and works at the interdisciplinary bridge between theory and experiment, as well as between (scanning) transmission electron microscopy (S/TEM) and materials science.
Your responsibility
You will contribute to the development of physics-based algorithms for the reconstruction of three-dimensional strain fields in nano-heterostructures. The focus is on the numerical inversion of dynamical electron diffraction. For your experimental work, you will have direct access to the highly specialized, state-of-the-art 300kV S/TEM infrastructure at Technische Universität Berlin.
Your tasks will include:
- Development of experimental measurement methods for acquiring dynamical electron diffraction datasets, for example using 4D-STEM or electron holographic beam tilt series
- Simulation and analysis of dynamical diffraction effects
- Optimization, evaluation, and validation of numerical inversion approaches, especially regarding algorithms and regularization methods
- Application of the developed inversion methods to nanostructures (such as core-shell nanoparticles and semiconductor nanowires)
- Acquisition and analysis of comparison datasets using Nano-Beam Electron Diffraction (NBED), as well as HAADF and EDX tomography
- Exploration of machine learning approaches for the reconstruction
- Independent collaboration with national and international project partners in the fields of computational electron microscopy and materials science
A doctoral thesis (PhD) resulting from this work is possible. For further information, please contact Dr. Laura Niermann.
Your profile
- Successfully completed university degree (Master, Diplom, or equivalent) in physics or a related discipline; or completion by the start of the employment contract
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