Magnetization dynamics of coupled ferromagnetic disks
Abstract
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.
- Authors:
-
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Northwestern-Argonne Inst. for Science and Engineering
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Org.:
- Northwestern Univ., Evanston, IL (United States)
- OSTI Identifier:
- 1356972
- Alternate Identifier(s):
- OSTI ID: 1209841
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: 5; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Heinonen, Olle. Magnetization dynamics of coupled ferromagnetic disks. United States: N. p., 2015.
Web. doi:10.1103/PhysRevB.92.054420.
Heinonen, Olle. Magnetization dynamics of coupled ferromagnetic disks. United States. https://doi.org/10.1103/PhysRevB.92.054420
Heinonen, Olle. Mon .
"Magnetization dynamics of coupled ferromagnetic disks". United States. https://doi.org/10.1103/PhysRevB.92.054420. https://www.osti.gov/servlets/purl/1356972.
@article{osti_1356972,
title = {Magnetization dynamics of coupled ferromagnetic disks},
author = {Heinonen, Olle},
abstractNote = {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.},
doi = {10.1103/PhysRevB.92.054420},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 5,
volume = 92,
place = {United States},
year = {Mon Aug 10 00:00:00 EDT 2015},
month = {Mon Aug 10 00:00:00 EDT 2015}
}
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Works referencing / citing this record:
Magnetic excitations of skyrmions in antiferromagnetic-exchange coupled disks
journal, September 2018
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Collective magnetization dynamics in nanoarrays of thin FePd disks
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Collective magnetization dynamics in nano-arrays of thin FePd discs
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