Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field

Senfu Zhang; Junwei Zhang; Qiang Zhang; Craig Barton; Volker Neu; Yuelei Zhao; Zhipeng Hou; Yan Wen; CHEN GONG; Olga Kazakova; Wenhong Wang; Yong Peng; Dmitry A. Garanin; Eugene M. Chudnovsky; Xixiang Zhang

doi:10.1063/1.5021172

Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field

Senfu Zhang, Junwei Zhang, Qiang Zhang, Craig Barton, Volker Neu, Yuelei Zhao, Zhipeng Hou, Yan Wen, CHEN GONG, Olga Kazakova, Wenhong Wang, Yong Peng, Dmitry A. Garanin, Eugene M. Chudnovsky, Xixiang Zhang

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

Magnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature skyrmions in sputtered multilayer films are an important step towards their use in ultra-low power devices. Such practical applications prefer skyrmions to be stable at zero magnetic fields and room temperature. Here, we report the creation of skyrmion lattices in Pt/Co/Ta multilayers by a scanning local field using magnetic force microscopy tips. We also show that those newly created skyrmion lattices are stable at both room temperature and zero fields. Lorentz transmission electron microscopy measurements reveal that the skyrmions in our films are of Néel-type. To gain a deeper understanding of the mechanism behind the creation of a skyrmion lattice by the scanning of local fields, we perform micromagnetic simulations and find the experimental results to be in agreement with our simulation data. This study opens another avenue for the creation of skyrmion lattices in thin films.

Original language	English (US)
Pages (from-to)	132405
Journal	Applied Physics Letters
Volume	112
Issue number	13
DOIs	https://doi.org/10.1063/1.5021172
State	Published - Mar 29 2018

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OSR-2016-CRG5-2977
Acknowledgements: This publication is based on the research supported by the King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) under the Award No. OSR-2016-CRG5-2977. This work was also supported in part by the European Metrology Research Programme (EMRP) and EMRP participating countries under the EMPIR Project No. 15SIB06 Nanomag: Nano-scale traceable magnetic field measurements.

Access to Document

10.1063/1.5021172

https://repository.kaust.edu.sa/bitstream/10754/627497/1/1.5021172.pdf

Cite this

@article{ea367dd1cfa34028bc6646f4ad91bc26,

title = "Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field",

abstract = "Magnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature skyrmions in sputtered multilayer films are an important step towards their use in ultra-low power devices. Such practical applications prefer skyrmions to be stable at zero magnetic fields and room temperature. Here, we report the creation of skyrmion lattices in Pt/Co/Ta multilayers by a scanning local field using magnetic force microscopy tips. We also show that those newly created skyrmion lattices are stable at both room temperature and zero fields. Lorentz transmission electron microscopy measurements reveal that the skyrmions in our films are of N{\'e}el-type. To gain a deeper understanding of the mechanism behind the creation of a skyrmion lattice by the scanning of local fields, we perform micromagnetic simulations and find the experimental results to be in agreement with our simulation data. This study opens another avenue for the creation of skyrmion lattices in thin films.",

author = "Senfu Zhang and Junwei Zhang and Qiang Zhang and Craig Barton and Volker Neu and Yuelei Zhao and Zhipeng Hou and Yan Wen and CHEN GONG and Olga Kazakova and Wenhong Wang and Yong Peng and Garanin, {Dmitry A.} and Chudnovsky, {Eugene M.} and Xixiang Zhang",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR-2016-CRG5-2977 Acknowledgements: This publication is based on the research supported by the King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) under the Award No. OSR-2016-CRG5-2977. This work was also supported in part by the European Metrology Research Programme (EMRP) and EMRP participating countries under the EMPIR Project No. 15SIB06 Nanomag: Nano-scale traceable magnetic field measurements.",

year = "2018",

month = mar,

day = "29",

doi = "10.1063/1.5021172",

language = "English (US)",

volume = "112",

pages = "132405",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "13",

}

TY - JOUR

T1 - Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field

AU - Zhang, Senfu

AU - Zhang, Junwei

AU - Zhang, Qiang

AU - Barton, Craig

AU - Neu, Volker

AU - Zhao, Yuelei

AU - Hou, Zhipeng

AU - Wen, Yan

AU - GONG, CHEN

AU - Kazakova, Olga

AU - Wang, Wenhong

AU - Peng, Yong

AU - Garanin, Dmitry A.

AU - Chudnovsky, Eugene M.

AU - Zhang, Xixiang

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR-2016-CRG5-2977 Acknowledgements: This publication is based on the research supported by the King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) under the Award No. OSR-2016-CRG5-2977. This work was also supported in part by the European Metrology Research Programme (EMRP) and EMRP participating countries under the EMPIR Project No. 15SIB06 Nanomag: Nano-scale traceable magnetic field measurements.

PY - 2018/3/29

Y1 - 2018/3/29

N2 - Magnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature skyrmions in sputtered multilayer films are an important step towards their use in ultra-low power devices. Such practical applications prefer skyrmions to be stable at zero magnetic fields and room temperature. Here, we report the creation of skyrmion lattices in Pt/Co/Ta multilayers by a scanning local field using magnetic force microscopy tips. We also show that those newly created skyrmion lattices are stable at both room temperature and zero fields. Lorentz transmission electron microscopy measurements reveal that the skyrmions in our films are of Néel-type. To gain a deeper understanding of the mechanism behind the creation of a skyrmion lattice by the scanning of local fields, we perform micromagnetic simulations and find the experimental results to be in agreement with our simulation data. This study opens another avenue for the creation of skyrmion lattices in thin films.

AB - Magnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature skyrmions in sputtered multilayer films are an important step towards their use in ultra-low power devices. Such practical applications prefer skyrmions to be stable at zero magnetic fields and room temperature. Here, we report the creation of skyrmion lattices in Pt/Co/Ta multilayers by a scanning local field using magnetic force microscopy tips. We also show that those newly created skyrmion lattices are stable at both room temperature and zero fields. Lorentz transmission electron microscopy measurements reveal that the skyrmions in our films are of Néel-type. To gain a deeper understanding of the mechanism behind the creation of a skyrmion lattice by the scanning of local fields, we perform micromagnetic simulations and find the experimental results to be in agreement with our simulation data. This study opens another avenue for the creation of skyrmion lattices in thin films.

UR - http://hdl.handle.net/10754/627497

UR - https://aip.scitation.org/doi/10.1063/1.5021172

UR - http://www.scopus.com/inward/record.url?scp=85044751044&partnerID=8YFLogxK

U2 - 10.1063/1.5021172

DO - 10.1063/1.5021172

M3 - Article

SN - 0003-6951

VL - 112

SP - 132405

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

ER -

Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Cite this