Lecture image placeholder

Premium content

Access to this content requires a subscription. You must be a premium user to view this content.

Monthly subscription - $9.99Pay per view - $4.99Access through your institutionLogin with Underline account
Need help?
Contact us
Lecture placeholder background
VIDEO DOI: https://doi.org/10.48448/355q-3162

technical paper

MMM 2022

November 07, 2022

Minneapolis, United States

Detection of long range orbital torques

We report the experimental demonstration of long-range orbital torques generated by Nb and Ru and detected by spin-torque ferromagnetic resonance (ST-FMR) measurements in Nb/Ni and Ru/Ni bilayers. We identify the orbital torques from the sign-reversal and a strong enhancement in the damping-like torque observed in Nb (Ru)/Ni bilayers as compared to Nb (Ru)/FeCoB bilayers as theoretically predicted1. The long-range nature of orbital transport in the ferromagnet was revealed by varying the thickness of Ni in Nb (Ru)/Ni bilayers which is markedly different compared to the regular spin absorption in the ferromagnet that takes place in the first few layers confirming the recent prediction2. Finally, we show that the external injection of orbital current in a heavy metal such as Pt can convert the orbital current into a spin-current leading to higher switching efficiency and the enhanced spin-current generation that could both be potentially attractive for the application3,4.

References 1. Go, D. & Lee, H.-W. Orbital torque: Torque generation by orbital current injection. Phys. Rev. Res. 2, 013177 (2020). 2. Go, D. et al. Long-Range Orbital Magnetoelectric Torque in Ferromagnets. arXiv 2106.07928, 1–6 (2021). 3. Ding, S. et al. Harnessing Orbital-to-Spin Conversion of Interfacial Orbital Currents for Efficient Spin-Orbit Torques. Phys. Rev. Lett. 125, 177201 (2020). 4. Go, D., Jo, D., Lee, H.-W., Kläui, M. & Mokrousov, Y. Orbitronics: Orbital currents in solids. EPL (Europhysics Lett. 135, 37001 (2021). 5.


Transcript English (automatic)

Next from MMM 2022

Intrinsic Unidirectional Anisotropic Magnetoresistance in Thin Film FeRh

Intrinsic Unidirectional Anisotropic Magnetoresistance in Thin Film FeRh

MMM 2022

Ella Blake and 6 other authors

07 November 2022

Stay up to date with the latest Underline news!

Select topic of interest (you can select more than one)


  • All Lectures
  • For Librarians
  • Resource Center
  • Free Trial
Underline Science, Inc.
1216 Broadway, 2nd Floor, New York, NY 10001, USA

© 2023 Underline - All rights reserved