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.

Document Details

Document Type
Pub Defense Publication
Publication Date
Apr 01, 2021
Source ID
10.1063/5.0045627

Entities

People

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

Organizations

  • Institute of Physics
  • National Science Foundation
  • Sichuan University
  • University of California

Tags

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Solar Photovoltaics and Thermoelectric Devices.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots