Abstract
| Originalsprache | englisch |
|---|---|
| Aufsatznummer | Research Letter |
| Seitenumfang | 9 |
| Fachzeitschrift | Nature |
| DOIs | |
| Publikationsstatus | Elektronische Veröffentlichung vor Drucklegung. - 26 Jun 2019 |
Fields of Expertise
- Advanced Materials Science
Dies zitieren
Light-wave dynamic control of magnetism. / Siegrist, Florian; Gessner, Julia A.; Ossiander, Marcus; Denker, Christian; Chang, Yi-Ping; Schröder, Malte C.; Guggenmos, Alexander; Cui, Yang; Walowski, Jakob; Martens, Ulrike; Dewhurst, J. K.; Kleineberg, Ulf; Münzenberg, Markus; Sharma, Sangeeta; Schultze, Martin.
in: Nature, 26.06.2019.Publikation: Beitrag in einer Fachzeitschrift › Artikel › Forschung › Begutachtung
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TY - JOUR
T1 - Light-wave dynamic control of magnetism
AU - Siegrist, Florian
AU - Gessner, Julia A.
AU - Ossiander, Marcus
AU - Denker, Christian
AU - Chang, Yi-Ping
AU - Schröder, Malte C.
AU - Guggenmos, Alexander
AU - Cui, Yang
AU - Walowski, Jakob
AU - Martens, Ulrike
AU - Dewhurst, J. K.
AU - Kleineberg, Ulf
AU - Münzenberg, Markus
AU - Sharma, Sangeeta
AU - Schultze, Martin
PY - 2019/6/26
Y1 - 2019/6/26
N2 - The enigmatic interplay between electronic and magnetic phenomena observed in many early experiments and outlined in Maxwell’s equations propelled the development of modern electromagnetism1. Today, the fully controlled evolution of the electric field of ultrashort laser pulses enables the direct and ultrafast tuning of the electronic properties of matter, which is the cornerstone of light-wave electronics2–7. By contrast, owing to the lack of first-order interaction between light and spin, the magnetic properties of matter can only be affected indirectly and on much longer timescales, through a sequence of optical excitations and subsequent rearrangement of the spin structure8–16. Here we introduce the regime of ultrafast coherent magnetism and show how the magnetic properties of a ferromagnetic layer stack can be manipulated directly by the electric-field oscillations of light, reducing the magnetic response time to an external stimulus by two orders of magnitude. To track the unfolding dynamics in real time, we develop an attosecond time-resolved magnetic circular dichroism detection scheme, revealing optically induced spin and orbital momentum transfer in synchrony with light-field-driven coherent charge relocation17. In tandem with ab initio quantum dynamical modelling, we show how this mechanism enables the simultaneous control of electronic and magnetic properties that are essential for spintronic functionality. Our study unveils light-field coherent control of spin dynamics and macroscopic magnetic moments in the initial non-dissipative temporal regime and establishes optical frequencies as the speed limit of future coherent spintronic applications, spin transistors and data storage media.
AB - The enigmatic interplay between electronic and magnetic phenomena observed in many early experiments and outlined in Maxwell’s equations propelled the development of modern electromagnetism1. Today, the fully controlled evolution of the electric field of ultrashort laser pulses enables the direct and ultrafast tuning of the electronic properties of matter, which is the cornerstone of light-wave electronics2–7. By contrast, owing to the lack of first-order interaction between light and spin, the magnetic properties of matter can only be affected indirectly and on much longer timescales, through a sequence of optical excitations and subsequent rearrangement of the spin structure8–16. Here we introduce the regime of ultrafast coherent magnetism and show how the magnetic properties of a ferromagnetic layer stack can be manipulated directly by the electric-field oscillations of light, reducing the magnetic response time to an external stimulus by two orders of magnitude. To track the unfolding dynamics in real time, we develop an attosecond time-resolved magnetic circular dichroism detection scheme, revealing optically induced spin and orbital momentum transfer in synchrony with light-field-driven coherent charge relocation17. In tandem with ab initio quantum dynamical modelling, we show how this mechanism enables the simultaneous control of electronic and magnetic properties that are essential for spintronic functionality. Our study unveils light-field coherent control of spin dynamics and macroscopic magnetic moments in the initial non-dissipative temporal regime and establishes optical frequencies as the speed limit of future coherent spintronic applications, spin transistors and data storage media.
U2 - 10.1038/s41586-019-1333-x
DO - 10.1038/s41586-019-1333-x
M3 - Article
JO - Nature (London)
JF - Nature (London)
SN - 0028-0836
M1 - Research Letter
ER -