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Probing the interplay between lattice dynamics and short-range magnetic correlations in CuGeO3 with femtosecond RIXS.

Authors :
Paris, E.
Nicholson, C. W.
Johnston, S.
Tseng, Y.
Rumo, M.
Coslovich, G.
Zohar, S.
Lin, M. F.
Strocov, V. N.
Saint-Martin, R.
Revcolevschi, A.
Kemper, A.
Schlotter, W.
Dakovski, G. L.
Monney, C.
Schmitt, T.
Source :
NPJ Quantum Materials; 5/21/2021, Vol. 6 Issue 1, p1-8, 8p
Publication Year :
2021

Abstract

Investigations of magnetically ordered phases on the femtosecond timescale have provided significant insights into the influence of charge and lattice degrees of freedom on the magnetic sub-system. However, short-range magnetic correlations occurring in the absence of long-range order, for example in spin-frustrated systems, are inaccessible to many ultrafast techniques. Here, we show how time-resolved resonant inelastic X-ray scattering (trRIXS) is capable of probing such short-ranged magnetic dynamics in a charge-transfer insulator through the detection of a Zhang–Rice singlet exciton. Utilizing trRIXS measurements at the O K-edge, and in combination with model calculations, we probe the short-range spin correlations in the frustrated spin chain material CuGeO<subscript>3</subscript> following photo-excitation, revealing a strong coupling between the local lattice and spin sub-systems. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
23974648
Volume :
6
Issue :
1
Database :
Complementary Index
Journal :
NPJ Quantum Materials
Publication Type :
Academic Journal
Accession number :
150430142
Full Text :
https://doi.org/10.1038/s41535-021-00350-5