Master student (f/m/d)

The Leibniz Institute for Crystal Growth (IKZ) is a leading research institution in the field of science & technology as well as service & transfer of crystalline materials. Our goal is to enable solutions for pressing societal challenges (e.g. communication, artificial intelligence, climate protection, health, etc.) through modern electronic & photonic technologies. The work covers the entire spectrum from basic and applied research to pre-industrial development and is carried out in cooperation with national and international partners from universities, academies and industry. The institute is part of the Forschungsverbund Berlin (https://www.fv-berlin.de/) and a member of the Leibniz Association (https://www.leibniz-gemeinschaft.de).

The Leibniz-Institut für Kritallzüchtung currently looking for a

Master student (f/m/d)

For the master thesis topic:

“BaMgF₄ crystals: Czochralski growth and phase diagram exploration.”

Barium magnesium fluoride (BaMgF₄, BMF) is a promising material for deep ultraviolet (DUV, <200 nm) light generation, thanks to its wide transparency range at short wavelengths, second-order nonlinearity, and ferroelectricity that enable domain engineering for quasi-phase matching.

To maximize the quality of this material, it is essential to fully master the crystal growth process and minimize the formation of inclusions, scattering centres, and potential water contamination.

This project aims to provide the candidate with knowledge and hands-on experience in Czochralski crystal growth, with a focus on the specific challenges for fluoride crystals. Additionally, the candidate will also be studying and constructing pseudo-binary phase diagrams of doped BMF, using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The quality of the resulting crystals will be evaluated through visible and vacuum ultraviolet (VUV) transmittance measurements.

Applicants should be enrolled in a Master's degree program (or equivalent) in physics, chemistry, materials science, or a related field. Preference will be given to candidates with a background in crystallization and a solid understanding of phase diagrams.

The Leibniz-Institut für Kristallzüchtung actively supports a healthy work-life balance and is an equal opportunities employer. Female candidates are encouraged to apply and will be given preference if suitably qualified. Among equally qualified candidates, preference will be given to candidates with disabilities.

The position will be open from February 2026.

If you want to have more information about the project, please contact us:
Prof. Dr. Matthias Bickermann (matthias.bickermann@ikz-berlin.de)
PhD Stud. Gaetano Bonetti (gaetano.bonetti@ikz-berlin.de)  

Have we aroused your interest?
Then apply with a letter of motivation, curriculum vitae and all relevant certificates. To do so, please go to Job offers/jobs on our homepage and click on this advertisement and then on "Apply online". Applications will be accepted until the position is filled.