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Leib­niz-Insti­tut für Kris­tall­züch­tung im For­schungs­ver­bund Ber­lin e.V.

The Leibniz-Institut für Kristallzüchtung (IKZ) is a leading research institution in the area of science & technology as well as service & transfer of crystalline materials. Our goal is to enable solutions for urgent societal challenges (e.g. communication, artificial intelligence, climate protection, health etc.) by modern electronic & photonic technologies. The work covers the full spectrum from basic over applied research up to pre-industrial development and is performed in collaboration with national and international partners from university, academy and industry. The institute is part of Forschungsverbund Berlin ( and a member of the Leibniz Association You can find more details on the institute webpage:

Master student (m/f/d)

for the master thesis topic:

„Growth and characterization of two dimensional NbSe2-films for superconducting quantum bits”.


The candidate will perform the research activities in the “Semiconductor Nanostructures” group.

Your tasks:
  • Growth of NbSe2 films on different substrates like glass, Sapphire, Silicon
  • Optimization of the deposition process by varying the substrate temperature, growth rate of Niobium and Selenium
  • Characterization of the films by X-ray diffractometry (XRD), Atomic force microscopy (AFM), Raman and absorption spectra.
  • Temperature-dependent measurements 1K - 320K to determine the transition temperature.

Two dimensional (2D) materials are of great interest because of their unique physical and chemical properties. Among the 2D-materials, NbSe2 has attracted much attention due to the persistency of superconductivity into the 2D-limit. Further, 2D-materials were proven to enhance the performance of superconducting qubits: by manual exfoliation and stacking 2D-NbSe2 and a monolayer of 2D-dielectric into a superconducting-capacitor, the lateral dimensions of the qubit shunt capacitor could be reduced by a factor 100 opening a pathway to higher integration of superconducting qubits.

The aim of the Master thesis is to grow NbSe2 films and characterize them in terms of their crystalline quality and electronic properties such as the superconducting transition temperature (TC). For this purpose, the Master student will grow Nb films via physical vapor deposition which will be selenized in a separate chamber. The quality of the grown films will be investigated to ensure a fully closed and homogeneous film. Once the grown films have acceptable quality, the transition temperature will be determined.

Erwartete Qualifikationen:

The candidate must have a Bachelor or an equivalent degree in physics, physical chemistry,
chemistry, materials science, or a related discipline. Because of the international team, candidates with good English language skills would be preferred.

Hinweise zur Bewerbung:

If you want to have more information about the project, contact us: Dr. Setareh Zahedi (Tel.: 030/6392-2852, or Dr. Jens Martin (Tel.: 030/6392-2857,

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.