Large spin to charge conversion in antiferromagnetic Weyl semimetal Mn3Sn

Tian Yu; Hao Wu; Haoran He; Chenyang Guo; Chi Fang; Peng Zhang; Kin L. Wong; Shijie Xu; Xiufeng Han; Kang L. Wang

doi:10.1063/5.0045627

Large spin to charge conversion in antiferromagnetic Weyl semimetal Mn₃Sn

Tian Yu, Hao Wu, Haoran He, Chenyang Guo, Chi Fang, Peng Zhang, Kin L. Wong, Shijie Xu, Xiufeng Han, Kang L. Wang

College of Electrical Engineering and Computer Science

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

Abstract

The Weyl antiferromagnet Mn₃Sn has recently attracted significant attention as it is not only a novel magnetic quantum material of fundamental interest, but it also opens opportunities to investigate a number of exotic spin-dependent transports for practical antiferromagnetic devices. Here, we report the large spin to charge conversion observed in YIG/Mn₃Sn. Evidenced by both spin Seebeck and spin pumping measurements, the spin to charge conversion efficiency of Mn₃Sn is found ∼2.5 times of that for the conventional heavy metal Ta. Our results suggest a promising potential for employing a topological non-trivial antiferromagnet to achieve more efficient spin to charge conversion than conventional metallic materials.

Original language	English
Article number	041111
Journal	APL Materials
Volume	9
Issue number	4
DOIs	https://doi.org/10.1063/5.0045627
Publication status	Published - 2021 Apr 1

All Science Journal Classification (ASJC) codes

Materials Science(all)
Engineering(all)

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10.1063/5.0045627

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@article{2de82b3e05aa424f8ea547843a83b0ed,

title = "Large spin to charge conversion in antiferromagnetic Weyl semimetal Mn3Sn",

abstract = "The Weyl antiferromagnet Mn3Sn has recently attracted significant attention as it is not only a novel magnetic quantum material of fundamental interest, but it also opens opportunities to investigate a number of exotic spin-dependent transports for practical antiferromagnetic devices. Here, we report the large spin to charge conversion observed in YIG/Mn3Sn. Evidenced by both spin Seebeck and spin pumping measurements, the spin to charge conversion efficiency of Mn3Sn is found ∼2.5 times of that for the conventional heavy metal Ta. Our results suggest a promising potential for employing a topological non-trivial antiferromagnet to achieve more efficient spin to charge conversion than conventional metallic materials.",

author = "Tian Yu and Hao Wu and Haoran He and Chenyang Guo and Chi Fang and Peng Zhang and Wong, {Kin L.} and Shijie Xu and Xiufeng Han and Wang, {Kang L.}",

note = "Funding Information: This work was supported by the NSF (Award Nos. 1935362, 1909416, 1810163, and 1611570), the Nanosystems Engineering Research Center for Translational Applications of Nanoscale Multiferroic Systems (TANMS), and the U.S. Army Research Office MURI program under Grant Nos. W911NF-16-1-0472 and W911NF-15-1-10561. T.Y. acknowledges the International Visiting Program for Excellent Young Scholars of SCU. Publisher Copyright: {\textcopyright} 2021 Author(s).",

year = "2021",

month = apr,

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doi = "10.1063/5.0045627",

language = "English",

volume = "9",

journal = "APL Materials",

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TY - JOUR

T1 - Large spin to charge conversion in antiferromagnetic Weyl semimetal Mn3Sn

AU - Yu, Tian

AU - Wu, Hao

AU - He, Haoran

AU - Guo, Chenyang

AU - Fang, Chi

AU - Zhang, Peng

AU - Wong, Kin L.

AU - Xu, Shijie

AU - Han, Xiufeng

AU - Wang, Kang L.

N1 - Funding Information: This work was supported by the NSF (Award Nos. 1935362, 1909416, 1810163, and 1611570), the Nanosystems Engineering Research Center for Translational Applications of Nanoscale Multiferroic Systems (TANMS), and the U.S. Army Research Office MURI program under Grant Nos. W911NF-16-1-0472 and W911NF-15-1-10561. T.Y. acknowledges the International Visiting Program for Excellent Young Scholars of SCU. Publisher Copyright: © 2021 Author(s).

PY - 2021/4/1

Y1 - 2021/4/1

N2 - The Weyl antiferromagnet Mn3Sn has recently attracted significant attention as it is not only a novel magnetic quantum material of fundamental interest, but it also opens opportunities to investigate a number of exotic spin-dependent transports for practical antiferromagnetic devices. Here, we report the large spin to charge conversion observed in YIG/Mn3Sn. Evidenced by both spin Seebeck and spin pumping measurements, the spin to charge conversion efficiency of Mn3Sn is found ∼2.5 times of that for the conventional heavy metal Ta. Our results suggest a promising potential for employing a topological non-trivial antiferromagnet to achieve more efficient spin to charge conversion than conventional metallic materials.

AB - The Weyl antiferromagnet Mn3Sn has recently attracted significant attention as it is not only a novel magnetic quantum material of fundamental interest, but it also opens opportunities to investigate a number of exotic spin-dependent transports for practical antiferromagnetic devices. Here, we report the large spin to charge conversion observed in YIG/Mn3Sn. Evidenced by both spin Seebeck and spin pumping measurements, the spin to charge conversion efficiency of Mn3Sn is found ∼2.5 times of that for the conventional heavy metal Ta. Our results suggest a promising potential for employing a topological non-trivial antiferromagnet to achieve more efficient spin to charge conversion than conventional metallic materials.

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