Master Thesis - Characterisation of magnesium diboride (MgB2 2) for Imaging Fluxons

The Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons (ER-C) is a centre of excellence in advanced transmission electron microscopy (TEM) and spectroscopy for addressing topical problems in materials science, solid‑state physics and chemistry, biology and soft matter. We carry out systematic characterisations using various complementary techniques, including the latest TEM based techniques such as electron holography, HR-(S)TEM, high‑energy resolution spectroscopy, 4D‑STEM, and ptychography. This enables measurements of electrical potentials, magnetic fields, polarization fields, built‑in potentials, strain, and carrier dynamics on nanometer scales with high temporal resolution.

Your Job

This Master's thesis is aimed at characterising magnesium diboride (MgB₂) crystals and studying their superconducting properties using transmission electron microscopy (TEM).

• The candidate should first assess how the growth parameters influence the microstructure of the material using X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy Dispersive Spectroscopy (EDS), and magnetisation and transport measurements (e.g., SQUID, PPMS).
• In the second phase, electron‑transparent specimens for TEM investigation should be prepared using focused ion beam milling (FIB), followed by the study of superconducting properties in the TEM under cryogenic conditions.

Your Profile

• You are studying physics, material sciences, metallurgical engineering, or a related subject at a university and are looking for a topic for a master's thesis.
• You have prior knowledge in electron microscopy, solid state physics, and laser optics.
• You can work independently, responsibly, show commitment, a high level of teamwork, and enjoy cooperative collaboration.
• Furthermore, you can quickly familiarise yourself with new methods and techniques.
• You are fluent in written and spoken English.

Our Offer

We work on highly topical, innovative topics and offer you the opportunity to actively shape change.

• An interesting and socially relevant topic for your thesis with a future‑oriented theme.
• Ideal conditions for practical experience alongside your studies.
• Interdisciplinary collaboration on projects in an international, committed and collegial team.
• Excellent scientific equipment and the latest technology.
• Qualified supervision by scientific colleagues.
• Independent preparation and implementation of the assigned tasks.
• A large research campus in the countryside, which offers the best opportunities for networking with colleagues and for sporting activities alongside work.
• Flexible working hours and appropriate remuneration.
• The opportunity to work flexibly (in terms of location), e.g. from home.

In addition to exciting tasks and a collegial working environment, we offer you much more:

We welcome applications from people with diverse backgrounds, e.g. in terms of age, gender, disability, sexual orientation / identity, and social, ethnic and religious origin. A diverse and inclusive working environment with equal opportunities in which everyone can realise their potential is important to us.

The following links provide further information on diversity and equal opportunities: and on specific support options:

We look forward to receiving your application. The job will be advertised until the position has been successfully filled. You should therefore submit your application as soon as possible.