Display options
Cite
Turgut E, La-o-Vorakiat C, Shaw JM, et al. Controlling the competition between optically induced ultrafast spin-flip scattering and spin transport in magnetic multilayers. Phys Rev Lett. 2013;110(19):197201doi: 10.1103/PhysRevLett.110.197201.
Turgut, E., La-o-Vorakiat, C., Shaw, J. M., Grychtol, P., Nembach, H. T., Rudolf, D., Adam, R., Aeschlimann, M., Schneider, C. M., Silva, T. J., Murnane, M. M., Kapteyn, H. C., & Mathias, S. (2013). Controlling the competition between optically induced ultrafast spin-flip scattering and spin transport in magnetic multilayers. Physical review letters, 110(19), 197201. https://doi.org/10.1103/PhysRevLett.110.197201
Turgut, Emrah, et al. "Controlling the competition between optically induced ultrafast spin-flip scattering and spin transport in magnetic multilayers." Physical review letters vol. 110,19 (2013): 197201. doi: https://doi.org/10.1103/PhysRevLett.110.197201
Turgut E, La-o-Vorakiat C, Shaw JM, Grychtol P, Nembach HT, Rudolf D, Adam R, Aeschlimann M, Schneider CM, Silva TJ, Murnane MM, Kapteyn HC, Mathias S. Controlling the competition between optically induced ultrafast spin-flip scattering and spin transport in magnetic multilayers. Phys Rev Lett. 2013 May 10;110(19):197201. doi: 10.1103/PhysRevLett.110.197201. Epub 2013 May 07. PMID: 23705737.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2013 May 10;110(19):197201. doi: 10.1103/PhysRevLett.110.197201. Epub 2013 May 07.

Controlling the competition between optically induced ultrafast spin-flip scattering and spin transport in magnetic multilayers.

Physical review letters

Emrah Turgut, Chan La-o-Vorakiat, Justin M Shaw, Patrik Grychtol, Hans T Nembach, Dennis Rudolf, Roman Adam, Martin Aeschlimann, Claus M Schneider, Thomas J Silva, Margaret M Murnane, Henry C Kapteyn, Stefan Mathias

Affiliations

  1. Department of Physics and JILA, University of Colorado, Boulder and NIST, Colorado 80309, USA.

PMID: 23705737 DOI: 10.1103/PhysRevLett.110.197201

Abstract

The study of ultrafast dynamics in magnetic materials provides rich opportunities for greater fundamental understanding of correlated phenomena in solid-state matter, because many of the basic microscopic mechanisms involved are as-yet unclear and are still being uncovered. Recently, two different possible mechanisms have been proposed to explain ultrafast laser induced magnetization dynamics: spin currents and spin-flip scattering. In this work, we use multilayers of Fe and Ni with different metals and insulators as the spacer material to conclusively show that spin currents can have a significant contribution to optically induced magnetization dynamics, in addition to spin-flip scattering processes. Moreover, we can control the competition between these two processes, and in some cases completely suppress interlayer spin currents as a sample undergoes rapid demagnetization. Finally, by reversing the order of the Fe/Ni layers, we experimentally show that spin currents are directional in our samples, predominantly flowing from the top to the bottom layer.

Publication Types