Light-driven ultrafast phonomagnetism
By D. Afanasiev, J. Hortensius, B. Ivanov, A. Sasani, Eric Bousquet, Y. Blanter, R. Mikhaylovskiy, Alexey V. Kimel, A. Caviglia. 2019
152 citations recorded by the source corpus.
Exciting atomic oscillations with light is a powerful technique to control the electronic properties of materials, leading to remarkable phenomena such as light-induced superconductivity and ultrafast insulator to metal transitions. Here we show that light-driven lattice vibrations can be utilised to encode efficiently spin information in a magnetic medium. Intense mid-infrared electric field pulses, tuned to resonance with a vibrational normal mode of antiferromagnetic DyFeO3, drive the emergence of long-living weak ferromagnetic order. Light-driven phonon displacements promptly lower the energy barrier separating competing magnetic states, allowing the alignment of spins to occur within a few picoseconds, via non-equilibrium dynamics of the magnetic energy landscape.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/3bcba2385f58faff146c19e0164660002082f9e1
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In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Colloquium: Nonthermal pathways to ultrafast control in quantum materials (2021, background): “Phys., Vol. 93, No. 4, October–December 2021 041002-8 2017; Disa et al., 2020; Juraschek, Narang, and Spaldin, 2020; Afanasiev et al., 2021; Giorgianni et al., 2021; Stupakiewicz et al., 2021), in which magnetic properties of materials are modified via coherent phonon driving.”