Magnon-bandgap controllable artificial domain wall waveguide
arXiv:2301.09291 · doi:10.1063/5.0143444
Abstract
In this paper, a magnon-bandgap controllable artificial domain wall waveguide is proposed by means of micromagnetic simulation. By the investigation of the propagation behavior and dispersion relationship of spin waves in artificial domain wall waveguides, it is found that the nonreciprocal propagation of spin waves in the artificial domain walls are mainly affected by the local effective exchange field, and the magnon bandgap can be controlled by changing the maximum value of the effective exchange field. In addition, it is observed that the artificial domain wall waveguides are structurally more stable than the natural domain wall waveguides under the same spin wave injection conditions, and the magnon bandgap of the artificial domain wall waveguides can be adjusted by its width and magnetic anisotropy parameters. The bandgap controllable artificial domain wall scheme is beneficial to the miniaturization and integration of magnon devices and can be applied to future magnonic technology as a novel frequency filter.
References in corpus (12)
- The design and verification of Mumax3
- Spin-Wave Propagation in the Presence of Interfacial Dzyaloshinskii-Moriya Interaction
- Integrated magnonic half-adder
- A magnonic directional coupler for integrated magnonic half-adders
- Magnetic texture based magnonics
- Nanoscale confinement of ultrafast spin transfer torque exciting non-uniform spin dynamics by femtosecond spin current pulses
- Antiferromagnetic Domain Wall as Spin Wave Polarizer and Retarder
- Probing the Dzyaloshinskii-Moriya interaction in CoFeB ultrathin films using domain wall creep and Brillouin light spectroscopy
- Nonreciprocal spin-wave channeling along textures driven by the Dzyaloshinskii-Moriya interaction
- Reconfigurable sub-micron spin-wave majority gate with electrical transducers
- Localized domain-wall excitations in patterned magnetic dots probed by broadband ferromagnetic resonance
- Field- and current-driven magnetic domain-wall inverter and diode