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Dr. rer. nat. Mathias Weiler

Photo von Dr. rer. nat. Mathias Weiler.
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mathias.weiler@mytum.de
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Fakultät für Physik
Technische Physik
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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.

geeignet als
  • Masterarbeit Physik der kondensierten Materie
  • Masterarbeit Applied and Engineering Physics
Themensteller(in): Rudolf Gross
Manipulation von Spin-Wellen durch Spin-Bahn-Drehmomente

The field of magnonics deals with exploiting the collective spin dynamics (spin waves) of magnetically ordered materials for computational purposes. Efficient and scalable schemes for controlling spin waves in thin film ferromagnets thus have large application relevance. The magnetic torques arising due to the spin-orbit interaction allow to control spin waves by electric currents and acoustic waves at GHz frequencies. We are particularly interested in a spatially-resolved study of the interaction of spin waves with acoustic and current-induced torques in nanopatterned devices with application potential for spintronics.

We are looking for a talented and highly motivated master student who is interested in joining our spin dynamics project. During your thesis, you will use state-of-the-art nanolithography and thin film deposition tools to fabricate hybrid devices that allow for the interaction of spin waves with electrical currents and acoustic waves. You will study spin waves in these devices using optical and microwave spectroscopy methods.

geeignet als
  • Masterarbeit Physik der kondensierten Materie
  • Masterarbeit Applied and Engineering Physics
Themensteller(in): Rudolf Gross
Spintronische Hochfrequenzbauelemente

The spin-orbit interaction enables an electrical control of the spin degree of freedom at microwave frequencies. This principle can be exploited in spintronic devices that use magnetization dynamics for information storage and processing. During this thesis you will use direct laser writing optical lithography and thin film deposition techniques to define such spintronic devices. You will characterize the performance of your devices using state-of-the-art microwave and optical spectroscopy tools.
We are looking for a highly motivated candidate with an interest in magnetization dynamics, thin film deposition and lithography. Your thesis will be embedded in our core research program and you will closely collaborate with Master and PhD students.

Contact: Mathias.Weiler@wmi.badw.de, Rudolf.Gross@wmi.badw.de

geeignet als
  • Bachelorarbeit Physik
Themensteller(in): Rudolf Gross
Topologische magnetische Phasen in Dünnschicht-Heterostrukturen

The broken inversion symmetry at the interface of thin film ferromagnets and normal metals with strong spin-orbit coupling can give rise to chiral magnetic order. These 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. The goal of this master thesis is to fabricate such thin film multilayer structures using sputter deposition techniques and analyze their dynamic magnetic properties using broadband ferromagnetic resonance spectroscopy.

We are looking for a highly motivated master student to carry out these experiments on interfacial effects in metallic multilayers. The thesis work will be split up into of the fabrication of these multilayer structures using UHV sputter deposition systems and determining their magnetic properties by broadband ferromagnetic resonance spectroscopy and SQUID magnetometry.

geeignet als
  • Masterarbeit Physik der kondensierten Materie
  • Masterarbeit Applied and Engineering Physics
Themensteller(in): Rudolf Gross
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