Department of Applied Physics

Nanomagnetism and Spintronics (NanoSpin)

The Nanomagnetism and Spintronics (NanoSpin) Group focuses on experimental studies of magnetic, magneto-optical, and spin-transport phenomena in new functional materials and hybrid nanoscale structures.
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Our Research

Our group works on new nanoscale phenomena and materials for future memory and analogue computing technologies. In particular, we are interested in approaches that can be disruptive to the field. We study new control mechanisms of magnetism involving low-power electric fields and ultrafast light pulses. We also are working towards deterministic manipulation of spin waves, transport and switching of topological skyrmions, and frustration by design in artificial spin ice lattices. For cognitive computing, we develop new electronic and optoelectronic materials that emulate biological synapses and neurons.

We are a multidisciplinary and experimental research group. Our laboratory houses dedicated equipment for material growth, lithography, and structural, magnetic, and electronic transport characterization. As a frontier technique, we operate an in-situ transmission electron microscopy measurement platform for atomic-resolution imaging under varying irradiation, heating, electric-field, and straining conditions.

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Group leader

Professor Sebastiaan van Dijken

E-field1

E-Field Control of Magnetism

Leveraging strain transfer in multiferroic heterostructures or reversible ion migration in metal/oxide bilayers and complex oxides we seek to control magnetism by low-power voltage pulses in thin magnetic films and nanostructures.

Department of Applied Physics
Magnonics1

Magnonics

Using ferromagnetic/ferroelectric bilayers and patterned yttrium iron garnet films we investigate new mechanisms for short-wavelength spin-wave excitation and active spin-wave manipulation.

Department of Applied Physics
Skyrmions1

Magnetic Skyrmions

We investigate the formation, annihilation, switching, and controlled motion of magnetic skyrmions in ultrathin perpendicularly magnetized heterostructures using electric fields.

Department of Applied Physics
Magnetoplasmonics1

Magnetoplasmonics

By design of plasmonic excitations in ferromagnetic metamaterials we tailor their magneto-optical response.

Department of Applied Physics
Spin-ice1

Artifcial Spin Ice

Utilizing frustration by design in 2D and 3D lattices of single-domain Ising-type nanomagnets we explore the real-time dynamics of magnetic excitations in artificial spin ice systems.

Department of Applied Physics
Cognitive-computing1

Cognitive Computing

Using a variety of memristive electronic and optoelectronic oxide elements we emulate the functions of synapses and neurons in the brain.

Department of Applied Physics
TEM1

In-Situ TEM

Leveraging special specimen holders and a double Cs-corrected transmission electron microscope (TEM) we are imaging nanomaterials under varying electrical biasing and heating conditions.

Department of Applied Physics

Latest publications

Geometrical frustration and competing orders in the dipolar trimerized triangular lattice

Kevin Hofhuis, Charlotte Petersen, Michael Saccone, Scott Dhuey, Armin Kleibert, Sebastiaan van Dijken, Alan Farhan 2021 Physical Review B (Condensed Matter and Materials Physics)

Electronic and Magnetic Characterization of Epitaxial CrBr3 Monolayers on a Superconducting Substrate

Shawulienu Kezilebieke, Orlando J. Silveira, Md N. Huda, Viliam Vaňo, Markus Aapro, Somesh Chandra Ganguli, Jouko Lahtinen, Rhodri Mansell, Sebastiaan van Dijken, Adam S. Foster, Peter Liljeroth 2021 Advanced Materials

Enhanced optical nonlinearity in β-MnO2 nanowire network decorated with Ag nanoparticles

Manish Kumar, Sreekanth Perumbilavil, Alok Goel, Reji Philip 2021 Optical Materials

Roadmap on Magnetoelectric Materials and Devices

Xianfeng Liang, Alexei Matyushov, Patrick Hayes, Viktor Schell, Cunzheng Dong, Huaihao Chen, Yifan He, Alexandria Will-Cole, Eckhard Quandt, Pedro Martins, Jeffrey McCord, Marisa Medarde, Senentxu Lanceros-Mendez, Sebastiaan Van Dijken, Nian X. Sun, Jordi Sort 2021 IEEE Transactions on Magnetics

Low-energy states, ground states, and variable frustrations of the finite-size dipolar Cairo lattices

Kseniia Makarova, Vladislav Strongin, Iuliia Titovets, Aleksandr Syrov, Ivan Zinchenko, Victor Samoylov, Kevin Hofhuis, Michael Saccone, Aleksandr Makarov, Alan Farhan, Konstantin Nefedev 2021 Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

Spin-Wave Emission from Vortex Cores under Static Magnetic Bias Fields

Sina Mayr, Lukáš Flajšman, Simone Finizio, Aleš Hrabec, Markus Weigand, Johannes Förster, Hermann Stoll, Laura J. Heyderman, Michal Urbánek, Sebastian Wintz, Jörg Raabe 2021 Nano Letters

Electric-Field Control of Propagating Spin Waves by Ferroelectric Domain-Wall Motion in a Multiferroic Heterostructure

Huajun Qin, Rouven Dreyer, Georg Woltersdorf, Tomoyasu Taniyama, Sebastiaan van Dijken 2021 Advanced Materials

Nanoscale magnonic Fabry-Pérot resonator for low-loss spin-wave manipulation

Huajun Qin, Rasmus B. Holländer, Lukáš Flajšman, Felix Hermann, Rouven Dreyer, Georg Woltersdorf, Sebastiaan van Dijken 2021 Nature Communications

Bioinspired multisensory neural network with crossmodal integration and recognition

Hongwei Tan, Yifan Zhou, Quanzheng Tao, Johanna Rosen, Sebastiaan van Dijken 2021 Nature Communications

Exploring the optical limiting, photocatalytic and antibacterial properties of the BiFeO3-NaNbO3 nanocomposite system

Rehana P. Ummer, Sreekanth Perumbilavil, Jiya Jose, Sabu Thomas, Pramod Gopinath, Nandakumar Kalarikkal 2021 RSC Advances
More information on our research in the Research database.
Research database
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