Stochastic dynamics of strongly-bound magnetic vortex pairs
Source abstract
Abstract
We demonstrate that strongly-bound spin-vortex pairs exhibit pronounced stochastic behaviour. Such dynamics is due to collective magnetization states originating from purely dipolar interactions between the vortices. The resulting thermal noise exhibits telegraph-like behaviour, with random switching between different oscillation regimes observable at room temperature. The noise in the system is further studied by varying the external field and observing the related changes in the frequency of switching and the probability for different magnetic states and regimes. Monte Carlo simulations are used to replicate and explain the experimental observations.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnetic properties of thin films · Theoretical and Computational Physics · Characterization and Applications of Magnetic Nanoparticles
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Royal Institute of Technology 1 , 10691 Stockholm, Sweden
Institute of Magnetism, National Academy of Science 2 , 03142 Kiev, Ukraine
Funding
National Academy of Sciences of Ukraine
References (29)
Show source-provided references
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