Einstein–de Haas torque as a discrete spectroscopic probe allows nanomechanical measurement of a magnetic resonance
Source abstract
Abstract
The Einstein-de Haas (EdH) effect is a consequence of angular momentum conservation wherein a physical rotation of a magnetic body results from a change in magnetization. A micromechanical resonator supporting a ladder of resonances is used to explore the inherent frequency dependence of torque resulting from this rotation in a thin-film permalloy sample, utilizing cavity optomechanical readout. Giant EdH torques are found at a gyrotropic magnetic resonance in the permalloy, which overlaps a high-order mechanical resonance of the sensor.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Mechanical and Optical Resonators · Force Microscopy Techniques and Applications · Photonic and Optical Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
Nanotechnology Research Centre, National Research Council of Canada, Edmonton, Alberta T6G 2M9, Canada
Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada
Funding
Natural Sciences and Engineering Research Council of Canada · Canada Foundation for Innovation · Canada Research Chairs · National Research Council Canada · University of Alberta
References (35)
Show source-provided references
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