6 papers
Temperature-tunable spin-wave refraction using superconducting control elements
Pim H. Vree, Merel A. Bouma, Michael Borst +3
Spin waves are promising signal carriers for microwave control at the micrometer scale. However, realizing low-damping, tunable control of spin-wave propagation remains a central c…
Theory of spin-wave transport in ferromagnet-superconductor heterostructures: Negative refraction, perfect imaging and temperature-controlled spin-wave optics
Tomas T. Osterholt, Thijs van der Meer, Pim H. Vree +4
We investigate spin-wave transport in ferromagnetic insulator-superconductor (FMI-SC) heterostructures and develop a general theoretical framework for spin-wave optics in these hyb…
Enhanced spin-current generation in Dirac altermagnets through Klein tunneling
Tomas T. Osterholt, Lumen Eek, Cristiane Morais Smith +1
Altermagnets have recently emerged as a new platform for spintronics applications, offering spin-split electronic bands despite vanishing net magnetization. Here, we investigate sp…
Detection of Geometric Phases in Spin Waves using Nitrogen-Vacancy Centers
Tomas T. Osterholt, Pieter M. Gunnink, Rembert A. Duine
Due to their robustness, the implementation of geometric phases provides a reliable and controllable way to manipulate the phase of a spin wave, thereby paving the way towards func…
Twist-modulated magnetic interactions in bilayer van der Waals materials
Tomas T. Osterholt, D. O. Oriekhov, Lumen Eek +2
The ability to control magnetic interactions at the nanoscale is crucial for the development of next-generation spintronic devices and functional magnetic materials. In this work,…
RKKY quadratic and biquadratic spin-spin interactions in twisted bilayer graphene
D. O. Oriekhov, T. T. Osterholt, R. A. Duine +1
We study the competition between the RKKY quadratic and biquadratic spin-spin interactions of two magnetic impurities in twisted bilayer graphene away from the magic angle. We appl…