Dr. Tobias Wimmer

Contact

https://www.linkedin.com/in/tobias-wimmer-8339561b9/

Assignments

Alumnus/Alumna: Magnetism and Spintronics

Tobias Wimmer was member of the Gross group at WMI as a aster and Ph.D. student between 2015 and 2021.

Master Thesis: Spin Transport in Magnetic Nanostructures (2016)
Ph.D. Thesis: Control and Manipulation of Magnonic Spin Currents in Magnetic Insulators (2021)

Tobias Wimmer was working on experiments aiming at the generation and control of pure spin currents in magnetic nanostructures. In particular, he implemented magnon transport in ferrimagnetic and antiferromagnetic insulators. His most important results include (i) the demonstration of spin transport through a magnetic insulator with fully compensated magnetic damping accompanied by the possible formation of a magnon Bose-Einstein condensate and (ii) the coherent control of antiferromagnetic spin excitations, allowing for an interconversion between right-/left-circularly as well as linearly polarized magnons.

He left WMI in June 2021 to become a patent attorney with Dörries Frank-Molnia & Pohlman Patentanwälte Rechtsanwälte PartG mbB.

Publications of Dr. Tobias Wimmer

2024

Electrically induced angular momentum flow between separated ferromagnets

Research Article | Physical Review Letters 132, 256701 (2024)

Preprint: arXiv:2311.05290

Richard Schlitz, Matthias Grammer, Tobias Wimmer, Janine Gückelhorn, Luis Flacke, Sebastian T.B. Goennenwein, Rudolf Gross, Hans Huebl, Akashdeep Kamra, Matthias Althammer

2022

Influence of low-energy magnons on magnon Hanle experiments in easy-plane antiferromagnets

Research Article | Physical Review B 105, 094440 (2022)

Preprint: arXiv:2112.03820

Janine Gückelhorn, Akashdeep Kamra, Tobias Wimmer, Matthias Opel, Stephan Geprägs, Rudolf Gross, Hans Huebl, Matthias Althammer

2021

Control and Manipulation of Magnonic Spin Currents in Magnetic Insulators

PHD Thesis | Technical University of Munich (2021)

Tobias Wimmer

Low Temperature Suppression of the Spin Nernst Angle in Pt

Research Article | Physical Review B 104, L140404 (2021)

Preprint: arXiv:2103.12697

Tobias Wimmer, Janine Gückelhorn, Sebastian Wimmer, Sergiy Mankovsky, Hubert Ebert, Matthias Opel, Stephan Geprägs, Rudolf Gross, Hans Huebl, Matthias Althammer

Magnon transport in Y₃Fe₅O₁₂/Pt nanostructures with reduced effective magnetization

Research Article | Physical Review B 104, L180410 (2021)

Preprint: arXiv:2108.03263

Janine Gückelhorn, Tobias Wimmer, Manuel Müller, Stephan Geprägs, Hans Huebl, Rudolf Gross, Matthias Althammer

2020

Antiferromagnetic magnon pseudospin: Dynamics and diffusive transport

Research Article | Physical Review B 102, 174445 (2020)

Akashdeep Kamra, Tobias Wimmer, Hans Huebl, and Matthias Althammer

High-Throughput Techniques for Measuring the Spin Hall Effect

Research Article | Physical Review Applied 14, 064011 (2020)

Markus Meinert, Björn Gliniors, Oliver Gueckstock, Tom S. Seifert, Lukas Liensberger, Mathias Weiler, Sebastian Wimmer, Hubert Ebert, and Tobias Kampfrath

Observation of Antiferromagnetic Magnon Pseudospin Dynamics and the Hanle Effect

Research Article | Physical Review Letters 125, 247204 (2020)

Preprint: arXiv:2008.00440

Tobias Wimmer, Akashdeep Kamra, Janine Gückelhorn, Matthias Opel, Stephan Geprägs, Rudolf Gross, Hans Huebl, Matthias Althammer

Quantitative comparison of magnon transport experiments in three-terminal YIG/Pt nanostructures acquired via dc and ac detection techniques

Research Article | Applied Physics Letters 117, 182401 (2020)

J. Gückelhorn, T. Wimmer, S. Geprägs, H. Huebl, R. Gross, and M. Althammer

2019

Anomalous spin Hall angle of a metallic ferromagnet determined by a multiterminal spin injection/detection device

Research Article | Applied Physics Letters 115, 092404 (2019)

Tobias Wimmer, Birte Coester, Stephan Geprägs, Rudolf Gross, Sebastian T. B. Goennenwein, Hans Huebl, Matthias Althammer

Role of interface quality for the spin Hall magnetoresistance in nickel ferrite thin films with bulk-like magnetic properties

Research Article | Applied Physics Letters 115, 092403 (2019)

Matthias Althammer, Amit Vikam Singh, Tobias Wimmer, Zbigniew Galazka, Hans Huebl, Matthias Opel, Rudolf Gross, Arunava Gupta

Spin Transport in a Magnetic Insulator with Zero Effective Damping

Research Article | Physical Review Letters 123, 257201 (2019)

Tobias Wimmer, Matthias Althammer, Lukas Liensberger, Nynke Vlietstra, Stephan Geprägs, Mathias Weiler, Rudolf Gross, Hans Huebl

2017

Non-local magnon transport in the compensated ferrimagnet GdIG

Research Article | arXiv:1705.02871

Kathrin Ganzhorn, Tobias Wimmer, Joseph Barker, Gerrit E. W. Bauer, Zhiyong Qiu, Eiji Saitoh, Nynke Vlietstra, Stephan Geprägs, Rudolf Gross, Hans Huebl, Sebastian T.B. Goennenwein

Observation of the spin Nernst effect

Research Article | Nature Materials 16, 977-981 (2017)

Sibylle Meyer, Yan-Ting Chen, Sebastian Wimmer, Matthias Althammer, Stephan Geprägs, Hans Huebl, D. Ködderitzsch, Hubert Ebert, Gerrit E.W. Bauer, Rudolf Gross, Sebastian T.B. Goennenwein

Temperature dependence of the non-local spin Seebeck effect in YIG/Pt nanostructures

Research Article | AIP Advances 7, 085102 (2017)

Kathrin Ganzhorn, Tobias Wimmer, Joel Cramer, Richard Schlitz, Stephan Geprägs, Gerhard Jakob, Rudolf Gross, Hans Huebl, Mathias Kläui, Sebastian T. B. Goennenwein

2016

Magnon-based logic in a multi-terminal YIG/Pt nanostructure

Research Article | Applied Physics Letters 109, 022405 (2016)

Kathrin Ganzhorn, Stefan Klingler, Tobias Wimmer, Stephan Geprägs, Rudolf Gross, Hans Huebl, Sebastian T. B. Goennenwein

Spin Transport in Magnetic Nanostructures

Master Thesis | Technical University of Munich (2016)