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Title: 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:
; ;
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1632475
Patent Number(s):
10,541,074
Application Number:
15/971,206
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
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. 2020. "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 = {},
url = {https://www.osti.gov/biblio/1632475}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {1}
}