Spin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayers

Handle URI:
http://hdl.handle.net/10754/622015
Title:
Spin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayers
Authors:
Yu, Jiawei; Qiu, Xuepeng; Wu, Yang; Yoon, Jungbum; Deorani, Praveen; Besbas, Jean Mourad; Manchon, Aurelien ( 0000-0002-4768-293X ) ; Yang, Hyunsoo
Abstract:
We study the spin orbit torque (SOT) and Dzyaloshinskii-Moriya interaction (DMI) in the dual-interfaced Co-Ni perpendicular multilayers. Through the combination of top and bottom layer materials (Pt, Ta, MgO and Cu), SOT and DMI are efficiently manipulated due to an enhancement or cancellation of the top and bottom contributions. However, SOT is found to originate mostly from the bulk of a heavy metal (HM), while DMI is more of interfacial origin. In addition, we find that the direction of the domain wall (DW) motion can be either along or against the electron flow depending on the DW tilting angle when there is a large DMI. Such an abnormal DW motion induces a large assist field required for hysteretic magnetization reversal. Our results provide insight into the role of DMI in SOT driven magnetization switching, and demonstrate the feasibility of achieving desirable SOT and DMI for spintronic devices.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Yu J, Qiu X, Wu Y, Yoon J, Deorani P, et al. (2016) Spin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayers. Scientific Reports 6: 32629. Available: http://dx.doi.org/10.1038/srep32629.
Publisher:
Springer Nature
Journal:
Scientific Reports
Issue Date:
7-Sep-2016
DOI:
10.1038/srep32629
Type:
Article
ISSN:
2045-2322
Sponsors:
This research was supported by the National Research Foundation (NRF), Prime Minister's Office, Singapore, under its Competitive Research Programme (CRP award no. NRFCRP12-2013-01). A.M. was supported by the King Abdullah University of Science and Technology (KAUST). H.Y. is a member of the Singapore Spintronics Consortium (SG-SPIN).
Additional Links:
http://www.nature.com/articles/srep32629
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorYu, Jiaweien
dc.contributor.authorQiu, Xuepengen
dc.contributor.authorWu, Yangen
dc.contributor.authorYoon, Jungbumen
dc.contributor.authorDeorani, Praveenen
dc.contributor.authorBesbas, Jean Mouraden
dc.contributor.authorManchon, Aurelienen
dc.contributor.authorYang, Hyunsooen
dc.date.accessioned2016-12-13T13:46:39Z-
dc.date.available2016-12-13T13:46:39Z-
dc.date.issued2016-09-07en
dc.identifier.citationYu J, Qiu X, Wu Y, Yoon J, Deorani P, et al. (2016) Spin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayers. Scientific Reports 6: 32629. Available: http://dx.doi.org/10.1038/srep32629.en
dc.identifier.issn2045-2322en
dc.identifier.doi10.1038/srep32629en
dc.identifier.urihttp://hdl.handle.net/10754/622015-
dc.description.abstractWe study the spin orbit torque (SOT) and Dzyaloshinskii-Moriya interaction (DMI) in the dual-interfaced Co-Ni perpendicular multilayers. Through the combination of top and bottom layer materials (Pt, Ta, MgO and Cu), SOT and DMI are efficiently manipulated due to an enhancement or cancellation of the top and bottom contributions. However, SOT is found to originate mostly from the bulk of a heavy metal (HM), while DMI is more of interfacial origin. In addition, we find that the direction of the domain wall (DW) motion can be either along or against the electron flow depending on the DW tilting angle when there is a large DMI. Such an abnormal DW motion induces a large assist field required for hysteretic magnetization reversal. Our results provide insight into the role of DMI in SOT driven magnetization switching, and demonstrate the feasibility of achieving desirable SOT and DMI for spintronic devices.en
dc.description.sponsorshipThis research was supported by the National Research Foundation (NRF), Prime Minister's Office, Singapore, under its Competitive Research Programme (CRP award no. NRFCRP12-2013-01). A.M. was supported by the King Abdullah University of Science and Technology (KAUST). H.Y. is a member of the Singapore Spintronics Consortium (SG-SPIN).en
dc.publisherSpringer Natureen
dc.relation.urlhttp://www.nature.com/articles/srep32629en
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleSpin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalScientific Reportsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Electrical Engineering and Computer Engineering, National University of Singapore, Singapore, Singaporeen
kaust.authorManchon, Aurelienen
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