Deterministic control of an antiferromagnetic spin arrangement using ultrafast optical excitation

@article{Windsor2020DeterministicCO,
  title={Deterministic control of an antiferromagnetic spin arrangement using ultrafast optical excitation},
  author={Yaov William Windsor and Arthur Ernst and Kurt Kummer and Kristin Kliemt and Christian Schussler-Langeheine and Niko Pontius and Urs Staub and Evgueni V Chulkov and Cornelius Krellner and Denis V. Vyalikh and Laurenz Rettig},
  journal={Communications Physics},
  year={2020},
  volume={3},
  pages={1-8}
}
A central prospect of antiferromagnetic spintronics is to exploit magnetic properties that are unavailable with ferromagnets. However, this poses the challenge of accessing such properties for readout and control. To this end, light-induced manipulation of the transient ground state, e.g. by changing the magnetic anisotropy potential, opens promising pathways towards ultrafast deterministic control of antiferromagnetism. Here, we use this approach to trigger a coherent rotation of the entire… Expand
2 Citations

Figures from this paper

Classical and cubic Rashba effect in the presence of in-plane 4f magnetism at the iridium silicide surface of the antiferromagnet GdIr2Si2
We present a combined experimental and theoretical study of the two-dimensional electron states at the iridium-silicide surface of the antiferromagnet GdIr2Si2 above and below the Neel temperature.Expand
Exchange scaling of ultrafast angular momentum transfer in 4$\it{f}$ antiferromagnets
1 Department of Physical Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4‐6, 14195 Berlin, Germany 2 Department of Physics and Astronomy, Uppsala University, Box 516, SE‐75120Expand

References

SHOWING 1-10 OF 62 REFERENCES
Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins
TLDR
It is found that the ultrafast spin reversal in GdFeCo, where spins are coupled antiferromagnetically, occurs by way of a transient ferromagnetic-like state, which provides a concept for the possibility of manipulating magnetic order on the timescale of the exchange interaction. Expand
Ultrafast optical manipulation of magnetic order
The interaction of subpicosecond laser pulses with magnetically ordered materials has developed into a fascinating research topic in modern magnetism. From the discovery of subpicosecondExpand
Spin transport and spin torque in antiferromagnetic devices
Ferromagnets are key materials for sensing and memory applications. In contrast, antiferromagnets, which represent the more common form of magnetically ordered materials, have found less practicalExpand
Itinerant and Localized Magnetization Dynamics in Antiferromagnetic Ho.
TLDR
The demagnetization time scales are found very similar to ferromagnetic 4f systems, suggesting that the loss of magnetic order occurs via a similar spin-flip process in both cases. Expand
Large-Amplitude Spin Dynamics Driven by a THz Pulse in Resonance with an Electromagnon
TLDR
The results show that it is possible to directly manipulate atomic-scale magnetic structures with the electric field of light on a sub-picosecond time scale. Expand
Ultrafast and Energy-Efficient Quenching of Spin Order: Antiferromagnetism Beats Ferromagnetism.
TLDR
The fast and extremely efficient process in the antiferromagnet is assigned to an interatomic transfer of angular momentum within the spin system, implying that this angular momentum transfer channel is effective in other magnetic metals with nonparallel spin alignment. Expand
Temporal and spectral fingerprints of ultrafast all-coherent spin switching
TLDR
Antenna-enhanced terahertz pulses ballistically switch spins in antiferromagnetic TmFeO3 with minimal energy dissipation between metastable minima of the anisotropy potential, as characterized by unique temporal and spectral fingerprints. Expand
Temperature Dependence of Laser-Induced Demagnetization in Ni: A Key for Identifying the Underlying Mechanism
The microscopic mechanisms responsible for the ultrafast loss of magnetic order triggered in ferromagnetic metals by optical excitation are still under debate. One of the ongoing controversies isExpand
Ultrafast nonthermal photo-magnetic recording in transparent medium
TLDR
This work describes ultrafast all-optical photo-magnetic recording in transparent films of the dielectric cobalt-substituted garnet, which outperforms existing alternatives in terms of the speed of the write–read magnetic recording event and the unprecedentedly low heat load. Expand
Disparate ultrafast dynamics of itinerant and localized magnetic moments in gadolinium metal
TLDR
G gadolinium shows disparate dynamics of the localized 4f and the itinerant 5d spin moments, demonstrating a breakdown of their intra-atomic exchange alignment on a picosecond timescale. Expand
...
1
2
3
4
5
...