Current-controlled propagation of spin waves in antiparallel, coupled domains

Liu, Chuanpu1; Wu, Shizhe2; Zhang, Jianyu1; Chen, Jilei1; Ding, Jinjun3; Ma, Ji4; Zhang, Yuelin2; Sun, Yuanwei5; Tu, Sa1; Wang, Hanchen1; Liu, Pengfei6; Li, Chexin6; Jiang, Yong6; Gao, Peng5; Yu, Dapeng5,7; Xiao, Jiang8,9,10; Duine, Rembert11,12; Wu, Mingzhong3; Nan, Ce-Wen4; Zhang, Jinxing2; Yu, Haiming1

2019-07

10.1038/s41565-019-0429-7

Nature Nanotechnology   影响因子和分区

1748-3387

1748-3395

Spin waves may constitute key components of low-power spintronic devices. Antiferromagnetic-type spin waves are innately high-speed, stable and dual-polarized. So far, it has remained challenging to excite and manipulate antiferromagnetic-type propagating spin waves. Here, we investigate spin waves in periodic 100-nm-wide stripe domains with alternating upward and downward magnetization in La0.67Sr0.33MnO3 thin films. In addition to ordinary low-frequency modes, a high-frequency mode around 10 GHz is observed and propagates along the stripe domains with a spin-wave dispersion different from the low-frequency mode. Based on a theoretical model that considers two oppositely oriented coupled domains, this high-frequency mode is accounted for as an effective antiferromagnetic spin-wave mode. The spin waves exhibit group velocities of 2.6 km s(-1) and propagate even at zero magnetic bias field. An electric current pulse with a density of only 10(5) A cm(-2) can controllably modify the orientation of the stripe domains, which opens up perspectives for reconfigurable magnonic devices.

SCI ; EI

英语

NI期刊

其他

US Department of Energy, Office of Science, Basic Energy Sciences[DE-SC0018994]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000473760300021

NATURE PUBLISHING GROUP

20191806845504

Strontium compounds ; Antiferromagnetism ; Lanthanum compounds ; Manganese compounds

Magnetism: Basic Concepts and Phenomena:701.2

Web of Science

1.Beihang Univ, Sch Microelect, BDBC, Fert Beijing Inst, Beijing, Peoples R China
2.Beijing Normal Univ, Dept Phys, Beijing, Peoples R China
3.Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA
4.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing, Peoples R China
5.Peking Univ, Sch Phys, State Key Lab Mesoscop Phys & Electron Microscopy, Beijing, Peoples R China
6.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Adv Innovat Ctr Mat Genome Engn, Beijing, Peoples R China
7.Southern Univ Sci & Technol, Dept Phys, Shenzhen, Peoples R China
8.Fudan Univ, Dept Phys, Shanghai, Peoples R China
9.Fudan Univ, State Key Lab Surface Phys, Shanghai, Peoples R China
10.Collaborat Innovat Ctr Adv Microstruct, Nanjing, Jiangsu, Peoples R China
11.Univ Utrecht, Inst Theoret Phys, Utrecht, Netherlands
12.Eindhoven Univ Technol, Dept Appl Phys, Eindhoven, Netherlands

Liu, Chuanpu,Wu, Shizhe,Zhang, Jianyu,et al. Current-controlled propagation of spin waves in antiparallel, coupled domains[J]. Nature Nanotechnology,2019,14(7):691-+.

Liu, Chuanpu.,Wu, Shizhe.,Zhang, Jianyu.,Chen, Jilei.,Ding, Jinjun.,...&Yu, Haiming.(2019).Current-controlled propagation of spin waves in antiparallel, coupled domains.Nature Nanotechnology,14(7),691-+.

Liu, Chuanpu,et al."Current-controlled propagation of spin waves in antiparallel, coupled domains".Nature Nanotechnology 14.7(2019):691-+.