Home > Research > Publications & Outputs > Femtosecond control of electric currents in met...

Associated organisational unit

Electronic data

Links

Text available via DOI:

View graph of relations

Femtosecond control of electric currents in metallic ferromagnetic heterostructures

Research output: Contribution to journalJournal article

Published
  • T.J. Huisman
  • Rostislav Mikhaylovskiy
  • J.D. Costa
  • F. Freimuth
  • E. Paz
  • J. Ventura
  • P. P. Freitas
  • S. Blugel
  • Y. Mokrousov
  • Th. Rasing
  • A.V. Kimel
Close
<mark>Journal publication date</mark>8/02/2016
<mark>Journal</mark>Nature Nanotechnology
Volume11
Number of pages4
Pages (from-to)455–458
Publication statusPublished
Original languageEnglish

Abstract

The idea to use not only the charge but also the spin of electrons in the operation of electronic devices has led to the development of spintronics, causing a revolution in how information is stored and processed. A novel advancement would be to develop ultrafast spintronics using femtosecond laser pulses. Employing terahertz (1012 Hz) emission spectroscopy and exploiting the spin–orbit interaction, we demonstrate the optical generation of electric photocurrents in metallic ferromagnetic heterostructures at the femtosecond timescale. The direction of the photocurrent is controlled by the helicity of the circularly polarized light. These results open up new opportunities for realizing spintronics in the unprecedented terahertz regime and provide new insights in all-optical control of magnetism.