Experimental realization of two-dimensional artificial skyrmion crystals at room temperature

B. F. Miao; L. Sun; Y. W. Wu; X. D. Tao; X. Xiong; Y. Wen; R. X. Cao; P. Wang; D. Wu; Q. F. Zhan; B. You; J. Du; R. W. Li; H. F. Ding

doi:10.1103/PhysRevB.90.174411

Experimental realization of two-dimensional artificial skyrmion crystals at room temperature

B. F. Miao
, L. Sun
, Y. W. Wu
, X. D. Tao
, X. Xiong
, Y. Wen
, R. X. Cao
, P. Wang
, D. Wu
, Q. F. Zhan
, B. You
, J. Du
, R. W. Li
, H. F. Ding^*

^*Corresponding author for this work

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

94 Scopus citations

Abstract

We report the creation of an artificial skyrmion crystal, which is configurable reliably at room temperature. The samples are fabricated by embedding lithography-patterned arrays of micron-sized Co disks onto Co/Pt multilayer films that have perpendicular magnetic anisotropy. Kerr microscopy and magnetic force microscopy reveal that the disks are in the vortex state with controllable circulation. Via comparison of measured hysteresis loops and calculated ones, we find that the sample can be configured into either a skyrmion or a non-skyrmion state. The reproducible and stable skyrmion crystal at room temperature opens the door to direct exploration of their unique topological properties, which has deservedly caused a flurry of theoretical activity.

Original language	English
Article number	174411
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	90
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.90.174411
State	Published - 11 Nov 2014
Externally published	Yes

Access to Document

10.1103/PhysRevB.90.174411

Cite this

Miao, B. F., Sun, L., Wu, Y. W., Tao, X. D., Xiong, X., Wen, Y., Cao, R. X., Wang, P., Wu, D., Zhan, Q. F., You, B., Du, J., Li, R. W., & Ding, H. F. (2014). Experimental realization of two-dimensional artificial skyrmion crystals at room temperature. Physical Review B - Condensed Matter and Materials Physics, 90(17), Article 174411. https://doi.org/10.1103/PhysRevB.90.174411

@article{67cbbda910a2448dbf551dc1779326a4,

title = "Experimental realization of two-dimensional artificial skyrmion crystals at room temperature",

abstract = "We report the creation of an artificial skyrmion crystal, which is configurable reliably at room temperature. The samples are fabricated by embedding lithography-patterned arrays of micron-sized Co disks onto Co/Pt multilayer films that have perpendicular magnetic anisotropy. Kerr microscopy and magnetic force microscopy reveal that the disks are in the vortex state with controllable circulation. Via comparison of measured hysteresis loops and calculated ones, we find that the sample can be configured into either a skyrmion or a non-skyrmion state. The reproducible and stable skyrmion crystal at room temperature opens the door to direct exploration of their unique topological properties, which has deservedly caused a flurry of theoretical activity.",

author = "Miao, \{B. F.\} and L. Sun and Wu, \{Y. W.\} and Tao, \{X. D.\} and X. Xiong and Y. Wen and Cao, \{R. X.\} and P. Wang and D. Wu and Zhan, \{Q. F.\} and B. You and J. Du and Li, \{R. W.\} and Ding, \{H. F.\}",

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

year = "2014",

month = nov,

day = "11",

doi = "10.1103/PhysRevB.90.174411",

language = "英语",

volume = "90",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "17",

}

TY - JOUR

T1 - Experimental realization of two-dimensional artificial skyrmion crystals at room temperature

AU - Miao, B. F.

AU - Sun, L.

AU - Wu, Y. W.

AU - Tao, X. D.

AU - Xiong, X.

AU - Wen, Y.

AU - Cao, R. X.

AU - Wang, P.

AU - Wu, D.

AU - Zhan, Q. F.

AU - You, B.

AU - Du, J.

AU - Li, R. W.

AU - Ding, H. F.

PY - 2014/11/11

Y1 - 2014/11/11

N2 - We report the creation of an artificial skyrmion crystal, which is configurable reliably at room temperature. The samples are fabricated by embedding lithography-patterned arrays of micron-sized Co disks onto Co/Pt multilayer films that have perpendicular magnetic anisotropy. Kerr microscopy and magnetic force microscopy reveal that the disks are in the vortex state with controllable circulation. Via comparison of measured hysteresis loops and calculated ones, we find that the sample can be configured into either a skyrmion or a non-skyrmion state. The reproducible and stable skyrmion crystal at room temperature opens the door to direct exploration of their unique topological properties, which has deservedly caused a flurry of theoretical activity.

AB - We report the creation of an artificial skyrmion crystal, which is configurable reliably at room temperature. The samples are fabricated by embedding lithography-patterned arrays of micron-sized Co disks onto Co/Pt multilayer films that have perpendicular magnetic anisotropy. Kerr microscopy and magnetic force microscopy reveal that the disks are in the vortex state with controllable circulation. Via comparison of measured hysteresis loops and calculated ones, we find that the sample can be configured into either a skyrmion or a non-skyrmion state. The reproducible and stable skyrmion crystal at room temperature opens the door to direct exploration of their unique topological properties, which has deservedly caused a flurry of theoretical activity.

UR - https://www.scopus.com/pages/publications/84911072253

U2 - 10.1103/PhysRevB.90.174411

DO - 10.1103/PhysRevB.90.174411

M3 - 文章

AN - SCOPUS:84911072253

SN - 1098-0121

VL - 90

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 17

M1 - 174411

ER -

Experimental realization of two-dimensional artificial skyrmion crystals at room temperature

Abstract

Access to Document

Other files and links

Fingerprint

Cite this