Methods and apparatus for making magnetic skyrmions
Abstract
A system and a method for the deterministic generation of magnetic skyrmions includes a magnetic strip configured to store and transport skyrmions. The magnetic strip includes one or more spatial inhomogeneities configured to generate a skyrmion at known locations when excited by a current pulse. A current pulse generator is used to inject current pulses into the magnetic strip via contact pads electrically coupled to both the current pulse generator and the magnetic strip. The system also includes a magnetic field source to apply an out-of-plane magnetic field across the magnetic strip to facilitate generation of skyrmions. Skyrmions can be generated by applying an out-of-plane magnetic field to the magnetic strip and injecting a current pulse with sufficient current density towards the spatial inhomogeneities. Once a skyrmion is generated, another current pulse with sufficient current density can be injected to move the skyrmion.
- Inventors:
- Issue Date:
- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1632475
- Patent Number(s):
- 10541074
- Application Number:
- 15/971,206
- Assignee:
- Massachusetts Institute of Technology (Cambridge, MA)
- Patent Classifications (CPCs):
-
G - PHYSICS G11 - INFORMATION STORAGE G11C - STATIC STORES
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
- DOE Contract Number:
- SC0012371
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/04/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Büttner, Felix, Lemesh, Ivan, and Beach, Geoffrey S. D. Methods and apparatus for making magnetic skyrmions. United States: N. p., 2020.
Web.
Büttner, Felix, Lemesh, Ivan, & Beach, Geoffrey S. D. Methods and apparatus for making magnetic skyrmions. United States.
Büttner, Felix, Lemesh, Ivan, and Beach, Geoffrey S. D. Tue .
"Methods and apparatus for making magnetic skyrmions". United States. https://www.osti.gov/servlets/purl/1632475.
@article{osti_1632475,
title = {Methods and apparatus for making magnetic skyrmions},
author = {Büttner, Felix and Lemesh, Ivan and Beach, Geoffrey S. D.},
abstractNote = {A system and a method for the deterministic generation of magnetic skyrmions includes a magnetic strip configured to store and transport skyrmions. The magnetic strip includes one or more spatial inhomogeneities configured to generate a skyrmion at known locations when excited by a current pulse. A current pulse generator is used to inject current pulses into the magnetic strip via contact pads electrically coupled to both the current pulse generator and the magnetic strip. The system also includes a magnetic field source to apply an out-of-plane magnetic field across the magnetic strip to facilitate generation of skyrmions. Skyrmions can be generated by applying an out-of-plane magnetic field to the magnetic strip and injecting a current pulse with sufficient current density towards the spatial inhomogeneities. Once a skyrmion is generated, another current pulse with sufficient current density can be injected to move the skyrmion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {1}
}
Works referenced in this record:
Magnetic element, skyrmion memory, skyrmion memory-device, solid-state electronic device, data-storage device, data processing and communication device
patent, November 2018
- Nagaosa, Naoto; Koshibae, Wataru; Iwasaki, Junichi
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Magnetic element, skyrmion memory, solid-state electronic device data recording apparatus, data processing apparatus, and communication apparatus
patent, August 2017
- Nagaosa, Naoto; Koshibae, Wataru; Iwasaki, Junichi
- US Patent Document 9,748,000