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Dr. rer. nat. Matthias Opel

Photo von Dr. rer. nat. Matthias Opel.
+49 89 289-14237
Page in TUMonline
Technical Physics
Additional Info
Zimmer 135 (1. OG)

Courses and Dates

Offered Bachelor’s or Master’s Theses Topics

Magnon transport in laterally confined magnetic insulators
In antiferromagnetic insulators, we obtain two magnon modes with opposite spin chirality due to the two opposing magnetic sublattices. In this way, magnon transport in antiferromagnetic insulators can be considered as the magnonic equivalent of electronic spin transport in semiconductors and the properties can be mapped onto a magnonic pseudospin. At present, most experiments rely on extended epitaxial thin films of antiferromagnetic insulators. Your thesis will be dedicated to confine the lateral dimensions of the magnon transport channel. By conducting all-electrical magnon transport experiments, you will then determine the role of lateral confinement in such measurement schemes. You are interested in providing novel insights into pseudospin properties in antiferromagnetic insulators and provide a spark for theoretical descriptions. In order to answer questions regarding magnon transport in magnetic insulators, your thesis will contain aspects of the fabrication of nano-scale devices using electron beam lithography as well as ultra-sensitive low-noise electronic measurements at high magnetic fields in a cryogenic environment.
suitable as
  • Master’s Thesis Condensed Matter Physics
Supervisor: Rudolf Gross


Revealing the effect of interstitial oxygen on the low-energy crystal electric field excitations of Pr3+ in 214 -nickelates
Rajesh Dutta (author), Avishek Maity (author), Anna Marsicano (author), J. Ross Stewart (author), Matthias Opel (author), Werner Paulus (author)
journal article
Physical Review B
DOI: 10.1103/PhysRevB.105.195147
Influence of low-energy magnons on magnon Hanle experiments in easy-plane antiferromagnets
Janine Gückelhorn (author), Akashdeep Kamra (author), Tobias Wimmer (author), Matthias Opel (author), Stephan Geprägs (author), Rudolf Gross (author), Hans Huebl (author), Matthias Althammer (author)
journal article
Physical Review B
DOI: 10.1103/PhysRevB.105.094440
In Situ Study of FePt Nanoparticles‐Induced Morphology Development during Printing of Magnetic Hybrid Diblock Copolymer Films
journal article
Advanced Functional Materials
DOI: 10.1002/adfm.202107667
ISSN: 1616-301X
ISSN: 1616-3028
Low-temperature suppression of the spin Nernst angle in Pt
T. Wimmer (author), J. Gückelhorn (author), S. Wimmer (author), S. Mankovsky (author), H. Ebert (author), M. Opel (author), S. Geprägs (author), R. Gross (author), H. Huebl (author), M. Althammer (author)
journal article
Physical Review B
DOI: 10.1103/PhysRevB.104.L140404
Controlling Domain-Wall Nucleation in Ta / Co - Fe - B / MgO Nanomagnets via Local Ga+ Ion Irradiation
Simon Mendisch (author), Fabrizio Riente (author), Valentin Ahrens (author), Luca Gnoli (author), Michael Haider (author), Matthias Opel (author), Martina Kiechle (author), Massimo Ruo Roch (author), Markus Becherer (author)
journal article
Physical Review Applied
DOI: 10.1103/PhysRevApplied.16.014039
Controlling Domain-Wall Nucleation in Ta/CoFeB/MgO Nanomagnets via Local Ga+ Ion Irradiation
journal article
Physical Review Applied
DOI: 10.1103/PhysRevApplied.16.014039
Quantifying the spin mixing conductance of EuO/W heterostructures by spin Hall magnetoresistance experiments
Paul Rosenberger (author), Matthias Opel (author), Stephan Geprägs (author), Hans Huebl (author), Rudolf Gross (author), Martina Müller (author), Matthias Althammer (author)
journal article
Applied Physics Letters
DOI: 10.1063/5.0049235
Spray-Deposited Anisotropic Ferromagnetic Hybrid Polymer Films of PS-b-PMMA and Strontium Hexaferrite Magnetic Nanoplatelets
Wei Cao (author), Shanshan Yin (author), Martina Plank (author), Andrei Chumakov (author), Matthias Opel (author), Wei Chen (author), Lucas P. Kreuzer (author), Julian E. Heger (author), Markus Gallei (author), Calvin J. Brett (author), Matthias Schwartzkopf (author), Artem A. Eliseev (author), Evgeny O. Anokhin (author), Lev A. Trusov (author), Stephan V. Roth (author), Peter Müller-Buschbaum (author)
journal article
ACS Applied Materials & Interfaces
DOI: 10.1021/acsami.0c19595
Surface distortion of Fe dot-decorated TiO2 nanotubular templates using time-of-flight grazing incidence small angle scattering
Neelima Paul (author), Jean-Francóis Moulin (author), Gaetano Mangiapia (author), Armin Kriele (author), Peter Müller-Buschbaum (author), Matthias Opel (author), Amitesh Paul (author)
journal article
Scientific Reports
DOI: 10.1038/s41598-020-60899-2
Static magnetic proximity effects and spin Hall magnetoresistance in Pt/Y3Fe5O12 and inverted Y3Fe5O12/Pt bilayers
journal article
Physical Review B
DOI: 10.1103/physrevb.102.214438
ISSN: 2469-9950
ISSN: 2469-9969

further publications (total of 197).

See ORCID profile of Matthias Opel as well.

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