Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice

S. Chin, A. Fernandez-Pacheco, A. Welbourne, R. Mansell, J. Lee, D. C. Petit, R. P. Cowburn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Vertical shift registers and 3-dimensional magnetic memory structures potentially provide a revolutionary increase in the areal density of magnetic data storage devices [1-3]. The Ruderman-Kit-tel-Kasuya-Yosida (RKKY) exchange coupled magnetic multilayer architecture proposed in [2] uses a localized topological soliton as a bit of information. The nucleation and injection of this bit, which is a form of excitation in the antiferromagnetic stack, has to be highly reproducible in order for this architecture to work [1, 4]. The nucleation and subsequently the propagation of a magnetic soliton are experimentally shown in [4]. This is achieved by modifying the ratio of the exchange coupling to the magnetic anisotropy strength of one of the edge layers in a synthetic ferromagnetic superlattice. Here, we further extend this to a system where the magnetic properties of both the edge layers of the synthetic ferrimagnetic superlattice are modified. The magnetic configurations of the superlattice during a hysteresis loop are investigated using macrospin simulation.

Original languageEnglish
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479973224
DOIs
Publication statusPublished - 14 Jul 2015
Externally publishedYes
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China
Duration: 11 May 201515 May 2015

Other

Other2015 IEEE International Magnetics Conference, INTERMAG 2015
CountryChina
CityBeijing
Period11/5/1515/5/15

Fingerprint

Solitons
Nucleation
Magnetic multilayers
Boundary conditions
Magnetic storage
Data storage equipment
Exchange coupling
Shift registers
Magnetic anisotropy
Hysteresis loops
Magnetic properties

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Chin, S., Fernandez-Pacheco, A., Welbourne, A., Mansell, R., Lee, J., Petit, D. C., & Cowburn, R. P. (2015). Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice. In 2015 IEEE International Magnetics Conference, INTERMAG 2015 [7157261] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTMAG.2015.7157261

Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice. / Chin, S.; Fernandez-Pacheco, A.; Welbourne, A.; Mansell, R.; Lee, J.; Petit, D. C.; Cowburn, R. P.

2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7157261.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chin, S, Fernandez-Pacheco, A, Welbourne, A, Mansell, R, Lee, J, Petit, DC & Cowburn, RP 2015, Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice. in 2015 IEEE International Magnetics Conference, INTERMAG 2015., 7157261, Institute of Electrical and Electronics Engineers Inc., 2015 IEEE International Magnetics Conference, INTERMAG 2015, Beijing, China, 11/5/15. https://doi.org/10.1109/INTMAG.2015.7157261
Chin S, Fernandez-Pacheco A, Welbourne A, Mansell R, Lee J, Petit DC et al. Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice. In 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7157261 https://doi.org/10.1109/INTMAG.2015.7157261
Chin, S. ; Fernandez-Pacheco, A. ; Welbourne, A. ; Mansell, R. ; Lee, J. ; Petit, D. C. ; Cowburn, R. P. / Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice. 2015 IEEE International Magnetics Conference, INTERMAG 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
@inproceedings{d6a679fc0e4d48ce81d6ce7f091cd0fd,
title = "Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice",
abstract = "Vertical shift registers and 3-dimensional magnetic memory structures potentially provide a revolutionary increase in the areal density of magnetic data storage devices [1-3]. The Ruderman-Kit-tel-Kasuya-Yosida (RKKY) exchange coupled magnetic multilayer architecture proposed in [2] uses a localized topological soliton as a bit of information. The nucleation and injection of this bit, which is a form of excitation in the antiferromagnetic stack, has to be highly reproducible in order for this architecture to work [1, 4]. The nucleation and subsequently the propagation of a magnetic soliton are experimentally shown in [4]. This is achieved by modifying the ratio of the exchange coupling to the magnetic anisotropy strength of one of the edge layers in a synthetic ferromagnetic superlattice. Here, we further extend this to a system where the magnetic properties of both the edge layers of the synthetic ferrimagnetic superlattice are modified. The magnetic configurations of the superlattice during a hysteresis loop are investigated using macrospin simulation.",
author = "S. Chin and A. Fernandez-Pacheco and A. Welbourne and R. Mansell and J. Lee and Petit, {D. C.} and Cowburn, {R. P.}",
year = "2015",
month = "7",
day = "14",
doi = "10.1109/INTMAG.2015.7157261",
language = "English",
isbn = "9781479973224",
booktitle = "2015 IEEE International Magnetics Conference, INTERMAG 2015",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - GEN

T1 - Trapping of a magnetic soliton by modifying the boundary conditions of a synthetic ferrimagnetic superlattice

AU - Chin, S.

AU - Fernandez-Pacheco, A.

AU - Welbourne, A.

AU - Mansell, R.

AU - Lee, J.

AU - Petit, D. C.

AU - Cowburn, R. P.

PY - 2015/7/14

Y1 - 2015/7/14

N2 - Vertical shift registers and 3-dimensional magnetic memory structures potentially provide a revolutionary increase in the areal density of magnetic data storage devices [1-3]. The Ruderman-Kit-tel-Kasuya-Yosida (RKKY) exchange coupled magnetic multilayer architecture proposed in [2] uses a localized topological soliton as a bit of information. The nucleation and injection of this bit, which is a form of excitation in the antiferromagnetic stack, has to be highly reproducible in order for this architecture to work [1, 4]. The nucleation and subsequently the propagation of a magnetic soliton are experimentally shown in [4]. This is achieved by modifying the ratio of the exchange coupling to the magnetic anisotropy strength of one of the edge layers in a synthetic ferromagnetic superlattice. Here, we further extend this to a system where the magnetic properties of both the edge layers of the synthetic ferrimagnetic superlattice are modified. The magnetic configurations of the superlattice during a hysteresis loop are investigated using macrospin simulation.

AB - Vertical shift registers and 3-dimensional magnetic memory structures potentially provide a revolutionary increase in the areal density of magnetic data storage devices [1-3]. The Ruderman-Kit-tel-Kasuya-Yosida (RKKY) exchange coupled magnetic multilayer architecture proposed in [2] uses a localized topological soliton as a bit of information. The nucleation and injection of this bit, which is a form of excitation in the antiferromagnetic stack, has to be highly reproducible in order for this architecture to work [1, 4]. The nucleation and subsequently the propagation of a magnetic soliton are experimentally shown in [4]. This is achieved by modifying the ratio of the exchange coupling to the magnetic anisotropy strength of one of the edge layers in a synthetic ferromagnetic superlattice. Here, we further extend this to a system where the magnetic properties of both the edge layers of the synthetic ferrimagnetic superlattice are modified. The magnetic configurations of the superlattice during a hysteresis loop are investigated using macrospin simulation.

UR - http://www.scopus.com/inward/record.url?scp=84942465698&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84942465698&partnerID=8YFLogxK

U2 - 10.1109/INTMAG.2015.7157261

DO - 10.1109/INTMAG.2015.7157261

M3 - Conference contribution

SN - 9781479973224

BT - 2015 IEEE International Magnetics Conference, INTERMAG 2015

PB - Institute of Electrical and Electronics Engineers Inc.

ER -