Adhikari, Kartik ; Barman, Saswati ; Mandal, Ruma ; Otani, Yoshichika ; Barman, Anjan (2018) Tunable Angle-Dependent Magnetization Dynamics in Ni80Fe20 Nanocross Structures of Varying Size Physical Review Applied, 10 (4). ISSN 2331-7019
Full text not available from this repository.
Official URL: http://doi.org/10.1103/PhysRevApplied.10.044010
Related URL: http://dx.doi.org/10.1103/PhysRevApplied.10.044010
Abstract
We demonstrate a large angular dependence of magnetization dynamics in Ni80Fe20 nano-cross arrays of varying sizes. By subtle variation of the azimuthal angle () of an in-plane bias magnetic field, the spin configuration and the ensuing spin-wave dynamics, including mode softening, mode splitting, mode crossover and mode merging, can be drastically varied to the extent that a frequency minimum corresponding to mode softening converts to a mode crossover, various mode splitting and mode crossover disappear and additional mode splitting appears. Numerically simulated spin-wave spectra and phase profiles revealed the nature of various spin-wave modes and the origin of above variation of the dynamics with bias-field angle. All of these above observations are further modified with the variation of dimensions of the nano-cross. The numerically calculated magnetostatic field distributions further supports the variation of dynamics with bias-field angle. TheseThe results open a new avenue for engineering the nano-cross based magnetic devices such as magnetic storage, spin-wave logic and on-chip data communication devices.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to American Physical Society. |
ID Code: | 116194 |
Deposited On: | 07 Apr 2021 10:27 |
Last Modified: | 07 Apr 2021 10:27 |
Repository Staff Only: item control page