Work

Frequency comb in a macroscopic mechanomagnetic artificial spin ice

Year: 2025

Type: article

Abstract: Artificial spin ices (ASI) are geometric arrangements of magnetic nanoparticles that exhibit frustration, which can be reproduced at the macroscale using permanent magnets mounted on hinges. However, the dynamics of macroscopic ASIs are completely different, due to their coupled magnetic and mechanical degrees of freedom. Upon dynamic excitation, a macroscopic system enters a nonlinear regime leading to the emergence of a frequency comb: a spectrum of discrete, equally spaced frequency components. This phenomenon is attributed to a Hopf bifurcation. Perhaps similar nonlinear behaviors could be engineered in nanoscale ASIs by integrating microresonators.

Source: Physical Review Applied

DOI: 10.1103/physrevapplied.23.044010

Authors: Renju R. Peroor, Lawrence A. Scafuri, Dmytro A. Bozhko, Ezio Iacocca

Institution: University of Colorado Colorado Springs

Language: English

Topic: Mechanical and Optical Resonators

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: National Science Foundation

Awards: Non-Hermitian and topological magnonics with interacting artificial spin ices for reconfigurable microwave devices, CAREER: Fundamental phenomena in magnon condensates