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Prof. Dr. Rudolf Gross

Photo von Prof. Dr. rer. nat. habil. Rudolf Gross.
Phone
+49 89 289-14201
Room
E-Mail
rudolf.gross@tum.de
Links
Homepage
Page in TUMonline
Group
Engineering Physics
Job Title
Professorship on Engineering Physics
Consultation Hour
on appointment

Courses and Dates

Title and Module Assignment
ArtSWSLecturer(s)Dates
Condensed Matter Physics 1 Assigned to modules:
VO 4 Gross, R. Tue, 12:00–14:00, PH HS2
Thu, 10:00–12:00, PH HS2
Superconductivity and Low Temperature Physics 1 Assigned to modules:
VO 2 Hackl, R.
Responsible/Coordination: Gross, R.
Thu, 12:00–14:00, PH HS3
Advances in Solid State Physics Assigned to modules:
PS 2 Gross, R. Tue, 10:15–11:30, WMI 143
Superconducting Quantum Circuits Assigned to modules:
PS 2 Deppe, F.
Responsible/Coordination: Gross, R.
Assisstants: Fedorov, K.Marx, A.
Tue, 14:30–16:00, WMI 142
Exercise to Condensed Matter Physics 1 Assigned to modules:
UE 2 Geprägs, S.
Responsible/Coordination: Gross, R.
dates in groups
Colloquium on Solid State Physics Assigned to modules:
KO 2 Gross, R. Thu, 17:00–19:00, PH HS3
FOPRA Experiment 16: Josephson Effects in Superconductors Assigned to modules:
PR 1 Gross, R.
Assisstants: Rager, G.Wimmer, T.
Revision Course to Advances in Solid State Physics Assigned to modules:
RE 2
Responsible/Coordination: Gross, R.
Revision Course to Superconducting Quantum Circuits Assigned to modules:
RE 2
Responsible/Coordination: Gross, R.
Walther-Meißner-Seminar on Topical Problems of Low Temperature Physics Assigned to modules:
SE 2 Gross, R. Fri, 13:30–14:45, WMI 143

Offered Bachelor’s or Master’s Theses Topics

Magnetization dynamics in chiral magnets

Chiral magnetic materials show exotic magnetic properties such as a skyrmion lattice phase and have strong application potential for future spintronic devices. For these applications, a detailed understanding of the magnetization dynamics in these materials is required. At WMI, we routinely use broadband magnetic resonance spectroscopy to study magnetization dynamics as a function of magnetic field, temperature and frequency in a wide range of different materials. Now, magnetization dynamics in thin film and bulk chiral magnets shall be explored, with a focus on novel resonance phenomena.

We are looking for a highly motivated and talented master student who is interested in joining our magnetization dynamics project. During your thesis, you will use state-of-the-art microwave equipment such as vector network analyzers as well as magnet cryostats and will work on the forefront of a rapidly developing scientific field.

suitable as
  • Master’s Thesis Condensed Matter Physics
  • Master’s Thesis Applied and Engineering Physics
Supervisor: Rudolf Gross
Nano-strings excited by magnetic torques

Nano-mechanical beams are prototype harmonic oscillators, and can be straightforwardly integrated with other nanoscale systems. For example, coupling nano-beams to coplanar microwave cavities yields so-called hybrid electro-mechanical systems with intriguing properties, e.g., electro-mechanically induced transparency. In a similar fashion, ferromagnetic nanostructures can be integrated with nano-beams. This enables the design and the investigation of spin-phonon coupling down to the single excitation level, or nanoscale Einstein-de Haas experiments, in which the angular momentum change arising from magnetization reversal is transferred into a mechanical vibration of the beam. 

We are looking for a motivated master student for a magnetic nano-beam oriented master thesis. The goal of your project is to investigate the static and dynamic interplay between the mechanical properties of double layer nano-beams and its magnetic properties. In your thesis project you will fabricate freely suspended nanostructures based on silicon nitride and ferromagnetic multi layers using state-of-the-art nano-lithography and metal deposition techniques. Further, you will probe the mechanical response of the nano-structures using optical interferometry while exciting the magnetization dynamics of the magnetic system. 

 
suitable as
  • Master’s Thesis Condensed Matter Physics
  • Master’s Thesis Applied and Engineering Physics
Supervisor: Rudolf Gross
Quantenlimitierte Josephson Parametrische Verstärker für das Ku-Band

Josephson parametric amplifiers (JPAs) are key components in the broad and thriving area of quantum information processing with superconducting circuits. Nowadays, they allow for quantum-limited amplification of microwave signals at the frequencies of several GHz. Thereby, they enable efficient quantum state tomography of various systems and detection of  extremely weak microwave signals. Extending these devices into the higher frequency range has many practical reasons such as potential improvement of JPA amplification properties. Additionally, there is a big interest in high-frequency JPAs in dark matter axion search experiments, where quantum-limited sensitivity is the key at the frequencies between 10 to 100 GHz corresponding to the axion mass.

In this project, we plan to develop  and fabricate flux-driven superconducting JPA designs applicable for the Ku-band frequencies. We will investigate the impact of quasiparticle and surface losses on amplification properties in the proposed frequency range. Finally, we intend to characterize and optimize gain and noise properties of the newly developed JPAs.

The master project consists of designing superconducting Josephson parametric amplifiers, fabricating the latter with electron beam lithography and aluminum shadow evaporation techniques, and performing cryogenic microwave measurements.

suitable as
  • Master’s Thesis Condensed Matter Physics
  • Master’s Thesis Applied and Engineering Physics
Supervisor: Rudolf Gross
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