Abstract
A wide variety of coupled harmonic oscillators exist in nature. Coupling between different oscillators allows for the possibility of mutual energy transfer between them and the information-signal propagation. Low-energy input signals and their transport with negligible energy loss are the key technological factors in the design of information-signal processing devices. Here, utilizing the concept of coupled oscillators, we experimentally demonstrated a robust new mechanism for energy transfer between spatially separated dipolar-coupled magnetic disks - stimulated vortex gyration. Direct experimental evidence was obtained by a state-of-the-art experimental time-resolved soft X-ray microscopy probe. The rate of energy transfer from one disk to the other was deduced from the two normal modes' frequency splitting caused by dipolar interaction. This mechanism provides the advantages of tunable energy transfer rates, low-power input signals and negligible energy loss in the case of negligible intrinsic damping. Coupled vortex-state disks might be implemented in applications for information-signal processing.
Highlights
CORRIGENDUM: Tunable negligible-loss energy transfer between dipolarcoupled magnetic disks by stimulated vortex gyration
This Article contains an error in the Acknowledgements section: ‘‘The operation of the microscope was supported by the Director, Office of Science, Office of Basic Energy
Materials Sciences and Engineering Division, of the U.S Department of Energy.’’ should read ‘‘The operation of the microscope was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S Department of Energy under Contract No DE-AC0205CH11231.’’
Summary
CORRIGENDUM: Tunable negligible-loss energy transfer between dipolarcoupled magnetic disks by stimulated vortex gyration
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