The original version of this Article incorrectly gave the first address in the list of affiliations as‘Fachbereich Physik,Technische Universitaet Kaiserslautern,Kaiserslautern,Germany’,instead of the correct‘Fachbe...The original version of this Article incorrectly gave the first address in the list of affiliations as‘Fachbereich Physik,Technische Universitaet Kaiserslautern,Kaiserslautern,Germany’,instead of the correct‘Fachbereich Physik and Landesforschungszentrum OPTIMAS,Technische Universität Kaiserslautern,D-67663 Kaiserslautern,Germany’.展开更多
The field of magnonics,which aims at using spin waves as carriers in data-processing devices,has attracted increasing interest in recent years.We present and study micromagnetically a nonlinear nanoscale magnonic ring...The field of magnonics,which aims at using spin waves as carriers in data-processing devices,has attracted increasing interest in recent years.We present and study micromagnetically a nonlinear nanoscale magnonic ring resonator device for enabling implementations of magnonic logic gates and neuromorphic magnonic circuits.In the linear regime,this device efficiently suppresses spin-wave transmission using the phenomenon of critical resonant coupling,thus exhibiting the behavior of a notch filter.By increasing the spin-wave input power,the resonance frequency is shifted,leading to transmission curves,depending on the frequency,reminiscent of the activation functions of neurons,or showing the characteristics of a power limiter.An analytical theory is developed to describe the transmission curve of magnonic ring resonators in the linear and nonlinear regimes,and is validated by a comprehensive micromagnetic study.The proposed magnonic ring resonator provides a multi-functional nonlinear building block for unconventional magnonic circuits.展开更多
文摘The original version of this Article incorrectly gave the first address in the list of affiliations as‘Fachbereich Physik,Technische Universitaet Kaiserslautern,Kaiserslautern,Germany’,instead of the correct‘Fachbereich Physik and Landesforschungszentrum OPTIMAS,Technische Universität Kaiserslautern,D-67663 Kaiserslautern,Germany’.
基金The project was funded by the European Research Council(ERC)Starting Grant 678309 MagnonCircuits and the Deutsche Forschungsgemeinschaft(DFG,German Research Foundation)-TRR 173-268565370(“Spin+X”,Project B01)the Nachwuchsring of the TU KaiserslauternR.V.acknowledges support of National Research Foundation of Ukraine(grant number 2020.02/0261).
文摘The field of magnonics,which aims at using spin waves as carriers in data-processing devices,has attracted increasing interest in recent years.We present and study micromagnetically a nonlinear nanoscale magnonic ring resonator device for enabling implementations of magnonic logic gates and neuromorphic magnonic circuits.In the linear regime,this device efficiently suppresses spin-wave transmission using the phenomenon of critical resonant coupling,thus exhibiting the behavior of a notch filter.By increasing the spin-wave input power,the resonance frequency is shifted,leading to transmission curves,depending on the frequency,reminiscent of the activation functions of neurons,or showing the characteristics of a power limiter.An analytical theory is developed to describe the transmission curve of magnonic ring resonators in the linear and nonlinear regimes,and is validated by a comprehensive micromagnetic study.The proposed magnonic ring resonator provides a multi-functional nonlinear building block for unconventional magnonic circuits.
