2 papers
cond-mat.mes-hall2024
Negative-energy spin waves in antiferromagnets for spin-current amplification and analogue gravity
Valentina Errani, Steven H. Schoenmaker, Xiangrong R. Wang +2
Magnonic black holes-analogue event horizons for the spin-wave collective excitations of ordered magnets-can be used for fundamental research, for example for investigating Hawking…
cond-mat.mes-hall2023
Non-linear dynamics near exceptional points of synthetic antiferromagnetic spin-torque oscillators
R. A. Duine, V. Errani, J. S. Harms
We consider a synthetic antiferromagnetic spin-torque oscillator with anisotropic interlayer exchange coupling. This system exhibits exceptional points in its linearized dynamics.…