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research article
Mapping of Electron-Hole Excitations in the Charge-Density-Wave System 1T-TiSe2 Using Resonant Inelastic X-Ray Scattering
In high-resolution resonant inelastic x-ray scattering at the Ti L edge of the charge-density-wave system 1T-TiSe2, we observe sharp low energy loss peaks from electron-hole pair excitations developing at low temperature. These excitations are strongly dispersing as a function of the transferred momentum of light. We show that the unoccupied bands close to the Fermi level can effectively be probed in this broadband material. Furthermore, we extract the order parameter of the charge-density-wave phase from temperature-dependent measurements.
Type
research article
Web of Science ID
WOS:000306690700011
Authors
Monney, C.
•
Zhou, K. J.
•
Cercellier, H.
•
Vydrova, Z.
•
Garnier, M. G.
•
Monney, G.
•
Strocov, V. N.
•
Berger, H.
•
Beck, H.
•
Schmitt, T.
Publication date
2012
Published in
Volume
109
Article Number
047401
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
August 24, 2012
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