Coherent Transfer of Spin Angular Momentum by Evanescent Spin Waves within Antiferromagnetic NiO

MacIej Dąbrowski, Takafumi Nakano, David M. Burn, Andreas Frisk, David G. Newman, Christoph Klewe, Qian Li, Mengmeng Yang, Padraic Shafer, Elke Arenholz, Thorsten Hesjedal, Gerrit Van Der Laan, Zi Q. Qiu, Robert J. Hicken

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Insulating antiferromagnets have recently emerged as efficient and robust conductors of spin current. Element-specific and phase-resolved X-ray ferromagnetic resonance has been used to probe the injection and transmission of ac spin current through thin epitaxial NiO(001) layers. The spin current is found to be mediated by coherent evanescent spin waves of GHz frequency, rather than propagating magnons of THz frequency, paving the way towards coherent control of the phase and amplitude of spin currents within an antiferromagnetic insulator at room temperature.

Original languageEnglish
Article number217201
JournalPhysical review letters
Volume124
Issue number21
DOIs
Publication statusPublished - 2020 May 29

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Coherent Transfer of Spin Angular Momentum by Evanescent Spin Waves within Antiferromagnetic NiO'. Together they form a unique fingerprint.

  • Cite this

    Dąbrowski, M., Nakano, T., Burn, D. M., Frisk, A., Newman, D. G., Klewe, C., Li, Q., Yang, M., Shafer, P., Arenholz, E., Hesjedal, T., Van Der Laan, G., Qiu, Z. Q., & Hicken, R. J. (2020). Coherent Transfer of Spin Angular Momentum by Evanescent Spin Waves within Antiferromagnetic NiO. Physical review letters, 124(21), [217201]. https://doi.org/10.1103/PhysRevLett.124.217201