A sound idea: Manipulating domain walls in magnetic nanowires using surface acoustic waves
- Submitting institution
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The University of Sheffield
- Unit of assessment
- 12 - Engineering
- Output identifier
- 2706
- Type
- D - Journal article
- DOI
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10.1063/1.4932057
- Title of journal
- Applied Physics Letters
- Article number
- 142405
- First page
- -
- Volume
- 107
- Issue
- 14
- ISSN
- 0003-6951
- Open access status
- Out of scope for open access requirements
- Month of publication
- October
- Year of publication
- 2015
- URL
-
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- Supplementary information
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- Request cross-referral to
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- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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5
- Research group(s)
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-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Racetrack memory is a storage technology where data is encoded by the position of domain walls (DWs) in magnetic nanowires. Our simulations demonstrate a power efficient method of transporting DWs by applying radiofrequency voltages to acoustic transducers. The large propagation distances of surface acoustic waves (SAWs) allow the synchronous motion of huge numbers of DWs using a single pair of acoustic transducers. This demonstrates the possibility of making simple racetrack memory devices with enhanced power efficiency. Our work has inspired modelling studies of how other magnetic textures may be moved using SAWs (doi.org/10.1063/1.5013620) and experimental investigations into SAW-DW interactions (doi.org/10.1063/1.5000080).
- Author contribution statement
- -
- Non-English
- No
- English abstract
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