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

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

Bioinspired multisensory neural network with crossmodal integration and recognition

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

Unconventional magnonic surface and interface states in layered ferromagnets

Khalil Zakeri, Huajun Qin, Arthur Ernst 2021 Communications physics

Geometrical Frustration and Planar Triangular Antiferromagnetism in Quasi-Three-Dimensional Artificial Spin Architecture

Alan Farhan, Michael Saccone, Charlotte Petersen, Scott Dhuey, Kevin Hofhuis, Rhodri Mansell, Rajesh V. Chopdekar, Andreas Scholl, Thomas Lippert, Sebastiaan van Dijken 2020 Physical Review Letters

Magnetoplasmonic properties of perpendicularly magnetized [Co/Pt](N) nanodots

Francisco Freire-Fernandez, Rhodri Mansell, Sebastiaan van Dijken 2020 Physical Review B

Surface-plasmon-polariton-driven narrow-linewidth magneto-optics in ni nanodisk arrays

Francisco Freire-Fernández, Mikko Kataja, Sebastiaan Van Dijken 2020 Nanophotonics

Unconventional Ferroelectric Switching via Local Domain Wall Motion in Multiferroic ε-Fe2O3 Films

Xiangxiang Guan, Lide Yao, Konstantin Z. Rushchanskii, Sampo Inkinen, Richeng Yu, Marjana Ležaí, Florencio Sánchez, Martí Gich, Sebastiaan van Dijken 2020 Advanced Electronic Materials

Raman fingerprints and exciton-phonon coupling in 2D ternary layered semiconductor InSeBr

Xuerong Hu, Luojun Du, Yadong Wang, Jouko Lahtinen, Lide Yao, Zhaoyu Ren, Zhipei Sun 2020 Applied Physics Letters
More information on our research in the Research database.
Research database
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