By resonant inelastic x-ray scattering in the soft x-ray regime we probe the dynamical multiple-spin correlations in the antiferromagnetic cuprates La2CuO4 and CaCuO2. High resolution measurements at the copper L-3 edge allow the clear observation of dispersing bimagnon excitations. Theory based on the ultrashort core-hole lifetime expansion fits the data on these coherent spin excitations without free parameters.
Braicovich, L., Ament, L., Bisogni, V., Forte, F., Aruta, C., Balestrino, G., et al. (2009). Dispersion of magnetic excitations in the cuprate La2CuO4 and CaCuO2 compounds measured using resonant X-ray scattering. PHYSICAL REVIEW LETTERS, 102(16), 1674011-1674014 [10.1103/PhysRevLett.102.167401].
Dispersion of magnetic excitations in the cuprate La2CuO4 and CaCuO2 compounds measured using resonant X-ray scattering
BALESTRINO, GIUSEPPE;MEDAGLIA, PIER GIANNI;
2009-01-01
Abstract
By resonant inelastic x-ray scattering in the soft x-ray regime we probe the dynamical multiple-spin correlations in the antiferromagnetic cuprates La2CuO4 and CaCuO2. High resolution measurements at the copper L-3 edge allow the clear observation of dispersing bimagnon excitations. Theory based on the ultrashort core-hole lifetime expansion fits the data on these coherent spin excitations without free parameters.| File | Dimensione | Formato | |
|---|---|---|---|
|
Braicovich PRL 2009.pdf
accesso aperto
Descrizione: Articolo principale
Dimensione
672.12 kB
Formato
Adobe PDF
|
672.12 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
