Magnetization dynamics of coupled ferromagnetic disks
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Northwestern-Argonne Inst. for Science and Engineering
The magnetization configuration in two stacked micron-size ferromagnetic disks can assume different equilibrium states depending on the interfacial coupling between the disks. In this paper, I examine the magnetization dynamics in response to an out-of-plane field pulse for different equilibrium states. For antiferromagnetic coupling, the response spectrum generally consists of a lower-frequency part and a higher-frequency part. The former is related to the response of the core region, which has a significant in-plane response coupled to the out-of-plane one; the latter is related to spin waves generated at the edges of the disk. Finally, for a meron structure the response in the two disks to an out-of-plane pulse is also asymmetric.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- Northwestern Univ., Evanston, IL (United States)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1356972
- Alternate ID(s):
- OSTI ID: 1209841
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 5; ISSN 1098-0121
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Magnetic excitations of skyrmions in antiferromagnetic-exchange coupled disks
|
journal | September 2018 |
Collective magnetization dynamics in nanoarrays of thin FePd disks
|
journal | May 2019 |
Collective magnetization dynamics in nano-arrays of thin FePd discs | text | January 2019 |
Similar Records
Magnetic coupling at rare earth ferromagnet/transition metal ferromagnet interfaces: A comprehensive study of Gd/Ni
Micromagnetic modeling of the magnetization dynamics in a circularly exchange-biased exchange-coupled ferromagnetic multilayer.