Pieter Gunnink
I am Pieter Gunnink, a Post-Doc in theoretical physics, at the Johannes Gutenberg-University Mainz, working in the INSPIRE group of Prof. Sinova , as a Marie Skłodowska-Curie Postdoctoral Fellow (Jul 2025–Jun 2027).
My research interests are in magnon transport, with a focus on topology. I have also worked on dipolar interactions in magnon systems and spin transfer torque effects in mesoscopic systems.
Research Interests
Magnon topology
Various topological phases have been predicted in magnonic systems, but to date none has been directly observed. This can in large part be attributed to the high frequency of the topological edge states. My primary interest is to develop alternative ways to probe magnon topology, such as in non-equilibrium and through non-Hermitian control.
Spin-transfer torque in mesoscopic systems
The spin-transfer torque is a versatile element in spintronics, converting an electrical current into a torque on a magnetic system. Understanding the spin-transfer torque requires the understanding of the complex non-equilibrium state that is created when the magnet is driven intro preccesion, giving rise to surprising effects.
Dipole-dipole interactions
Dipole-dipole interactions are ubiqitious in magnonic systems. Because of its long-range character, the dipole-dipole can give rise to unique symmetry-breaking effects, such as transverse spin currents and the magnon Hall effect.
Recent Publications
(2025).
Topological Magnon-Plasmon Hybrids.
arXiv:2510.07916.
(2025).
Spin demons in d-wave altermagnets.
Phys. Rev. Lett. 135, 126701.
(2025).
Surface acoustic wave driven acoustic spin splitter in d-wave altermagnetic thin films.
arXiv:2502.18007.
(2025).
Coupling of plasmons to the two-magnon continuum in antiferromagnets.
arXiv:2501.12873.
(2025).
Nonequilibrium effects in spin-torque oscillators.
Phys. Rev. B 111, 214425.
Experience
Marie Skłodowska-Curie Postdoctoral Fellow
Marie Skłodowska-Curie Postdoctoral Fellow in the INSPIRE group of Prof. Sinova. My interests are in non-Hermitian spintronics: the study of the spin degree of freedom in a non-Hermitian context. To study this, I loop at a wide range of spintronics systems, with a special interest in their couplings.
Alexander von Humboldt Postdoctoral Fellow
Alexander von Humboldt Postdoctoral Fellow, in both the INSPIRE group of Prof. Sinova and the TopMagIc group of Dr. Alexander Mook in Mainz. My interests are in two-dimensional magnonics, coupled to an adjacent metal layer.
Post-doc
Postdoc in the group of TopMagIc group of Dr. Alexander Mook in Mainz, working on magnon topology.
PhD Student
PhD thesis: Non-equilibrium topology in magnonic systems
Supervisor: Prof. dr. R.A. Duine
I worked on topology in magnon transport and electrical detection, exploring how to measure a variety of topological effects in magnon systems.
MsC in Applied Physics
University of Twente
Master’s thesis title: Engineering a topological insulator
Supervisor: Prof. dr. ir. A. Brinkman
BsC in Applied Physics
University of Twente
Contact
- pgunnink@uni-mainz.de
- Staudingerweg 7, Mainz, 55128
- Johannes Gutenberg-Universität Mainz