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Interested in a Ph.D. or a BSc/MSc/FP?

Are you looking forward to a Ph.D. Position? Are you a motivated student looking for a cutting-edge research project in a state-of-the-art facility? Are you looking for a close and personal scientific mentorship? Then apply to these positions!

PhD Position (f/m/d)

Job description:

The project will include a combination of numerical modeling of terahertz metasurface resonators, fabrication by lithographic techniques and pulsed electron spin resonance experiments.

The position will be available to start from the beginning of January 2024. The position is for 3 years. Remuneration will be based on the collective agreement for the public service of German federal states (Tarifvertrag für den Öffentlichen Dienst der Länder TV-L E13 50%).

Your profile:

I am looking for highly motivated individuals holding an MSc degree in Physics or Physical Engineering or similar who are interested in multidisciplinary projects at the interface of physics, chemistry and engineering. Ideally, but not necessarily, the applicant will have experience in metamaterials or metasurfaces and/or terahertz time-domain spectroscopy and/or magnetic resonance techniques.

Student Projects (f/m/d)

B.Sc./M.Sc./FP-Project
Supervisor: Lorenzo Tesi

Goal: Determine the influence of plasmonic structures on the resulting HF-EPR spectra for different magnetic samples.

Methods:

  • Sample preparation includes spin-coating or dropcast approaches;
  • Magnetic characterization of several different molecular systems by cw-EPR, HF-EPR and THz transmission measurements;
  • Data analysis with Python, Origin or Matlab;
  • Electromagnetic fields modelling with CST Studio software.

Background: 

The development of resonators for HF-EPR is limited by the EPR extreme frequency range used (sub-THz up to 1 THz). The structures we are designing increase the sensitivity of HFEPR technique, thus facilitating a wide range of applications. This is an innovative project that merges the research areas of plasmonics, metamaterials, THz frequencies and EPR. First results have confirmed what modelled by numerical simulations and now a broader investigation must be carried out on several new designed micro-antennas. It is a very interdisciplinary topic, for which chemists, physicists, engineers, and material sciences students are welcome.

Tasks:

Several types of studies can be performed depending on the interest of the student. The project can be more focused on the design and simulation or vice versa on the experimental side. A 50/50 mix of calculations and experiments can be carried out only within the master thesis. The research line of this project also involves graphene-based structures and can be chosen for the thesis work.

B.Sc./FP-Project
Supervisor: Lorenzo Tesi

Goal: Determine the best parameters and procedures to obtain a homogenous thin layer of magnetic molecules diluted in a polymeric matrix.

Methods:

  • Sample preparation by spin-coating with different conditions;
  • Characterization by Optical Microscope, Atomic Force Microscopy, Profilometry;
  • Data analysis with Python, Origin, or Matlab;
  • Applications with further techniques can occur depending on the specific project.

Background: Spin-coating is one of the best techniques existing for the fabrication of thin layers of polymeric species and is widely applied in academia as well as industry. Several parameters can be changed, providing very different results (static or dynamic method, speed rate, acceleration, drop volume, concentration of the solution, etc.). Serious difficulties can occur when the substrate is small or has not-squared shapes, limiting spin-coating applications in many research areas.   

Tasks: A systematic study must be carried out in order to define the influence of the various parameters on the thin layer fabrication. All the possibilities should be investigated to identify the best protocol. Several magnetic molecules, as well as polymers and substrates, will be used. Depending on the specific project, further applications can represent an additional minor part of the work. 

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About University of Stuttgart

Stuttgart is one of Europe's most vibrant economic centers. The university offers the best possible research and learning environment and extensive support for international students. The Institute is located on the Vaihingen scientific campus, in a pleasant green area well connected to the city.

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How to apply?

I look forward to receiving your application, which should include 1) a detailed curriculum vitae, 2) a statement of research interests containing a short description of your background, motivation, and skills, 3) a meaningful summary of your master thesis and 4) names and addresses of two contacts for references. Please send it as one pdf file by email.

The review of applications will begin immediately and continue until the position is filled. At the latest, 31st of December 2023.

This image shows Lorenzo Tesi

Lorenzo Tesi

Dr.

Emmy Noether Group Leader

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