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Scanning SQUID Study of Vortex Manipulation by Local Contact
Published on: February 1, 2017
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Deterministic control of magnetic vortex wall chirality by electric field
R P Beardsley1, S Bowe1,2, D E Parkes1
1School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom.
Scientific Reports
|August 10, 2017
Summary
Researchers demonstrate voltage-controlled magnetic domain wall switching for energy-efficient computing. This voltage-induced strain method offers a path to overcome limitations in magnetic storage and processing technologies.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Magnetic domain walls offer potential for advanced information storage and processing.
- Current manipulation methods (magnetic fields, spin currents) are energy-intensive.
- Voltage-controlled manipulation presents an energy-efficient alternative.
Purpose of the Study:
- To investigate voltage-induced control of magnetic domain walls.
- To demonstrate deterministic switching of magnetic vortex wall chirality.
- To assess the applicability for energy-efficient computing.
Main Methods:
- Applying voltage to induce uniaxial strain.
- Observing reversible and deterministic switching of magnetic vortex wall chirality.
- Analyzing the mechanism of voltage-induced strain control.
Main Results:
- Successfully demonstrated voltage-induced uniaxial strain.
- Achieved reversible and deterministic switching of magnetic vortex wall chirality.
- Established a viable method for energy-efficient magnetic domain wall manipulation.
Conclusions:
- Voltage-controlled strain is a promising method for manipulating magnetic domain walls.
- This technique advances the development of energy-efficient magnetic storage and logic.
- Significant step towards practical implementation of magnetic domain walls in computing.
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