Laser-induced transient magnons in Sr
iridates
time-resolved resonant X-ray scattering
transient magnetic excitations
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
01 Jun 2021
01 Jun 2021
Historique:
entrez:
27
5
2021
pubmed:
28
5
2021
medline:
28
5
2021
Statut:
ppublish
Résumé
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.
Identifiants
pubmed: 34039712
pii: 2103696118
doi: 10.1073/pnas.2103696118
pmc: PMC8179144
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Déclaration de conflit d'intérêts
The authors declare no competing interest.
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