Mazzone, DG;
Meyers, D;
Cao, Y;
Vale, JG;
Dashwood, CD;
Shi, Y;
James, AJA;
... Dean, MPM; + view all
(2021)
Laser-induced transient magnons in Sr3Ir2O7 throughout the Brillouin zone.
Proceedings of the National Academy of Sciences
, 118
(22)
, Article e2103696118. 10.1073/pnas.2103696118.
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Abstract
Although ultrafast manipulation of magnetism holds great promise for new physical phenomena and applications, targeting specific states is held back by our limited understanding of how magnetic correlations evolve on ultrafast timescales. Using ultrafast resonant inelastic X-ray scattering we demonstrate that femtosecond laser pulses can excite transient magnons at large wavevectors in gapped antiferromagnets and that they persist for several picoseconds, which is opposite to what is observed in nearly gapless magnets. Our work suggests that materials with isotropic magnetic interactions are preferred to achieve rapid manipulation of magnetism.
| Type: | Article |
|---|---|
| Title: | Laser-induced transient magnons in Sr3Ir2O7 throughout the Brillouin zone. |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1073/pnas.2103696118 |
| Publisher version: | https://doi.org/10.1073/pnas.2103696118 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Iridates, time-resolved resonant X-ray scattering, transient magnetic excitations |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10129047 |
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