Back to Search
Start Over
Nonvolatile switching of magnetostrictive nanodot from single-domain to vortex states by voltage at room temperature
- Source :
- Applied Physics Letters. 118:262402
- Publication Year :
- 2021
- Publisher :
- AIP Publishing, 2021.
-
Abstract
- We report the voltage regulation of electrodeposited elliptical magnetostrictive Ni nanodot arrays from single-domain to nonvolatile vortex state at room temperature. On the piezoelectric substrate, isolated elliptical Ni nanodots are fabricated between a pair of square electrodes, with the long axis parallel to the joint line of the electrodes. By applying a voltage to the surface electrodes pair, local stress is generated to induce the magnetization of the nanodots from single-domain to vortex state. The magnetization state of the nanodots is characterized by a magnetic force microscope. Even after the voltage is removed or applying another voltage, the nanodots maintain a stable vortex magnetization state, which shows that the vortex state after regulation is nonvolatile. These results are of great significance for the study of the low-energy-consumption regulation of the nano-dimensional magnetic material and vortex state-based nonvolatile memory.
- Subjects :
- 010302 applied physics
Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
Magnetostriction
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Vortex state
Vortex
Condensed Matter::Materials Science
Magnetization
0103 physical sciences
Voltage regulation
Nanodot
Magnetic force microscope
Single domain
0210 nano-technology
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........e22398fca66cc02e575ab4f999dc73b4