Abstract
Incident- and outgoing-photon polarization dependences of O (formula presented) x-ray emission spectrum (XES) in low-dimensional cuprate systems are investigated through model calculations using finite-size cluster models which include several copper sites. It is shown that the O (formula presented) resonant XES provides information on the Cu-related excitations such as the Cu (formula presented) excitations and the charge-transfer (CT) excitations, in addition to the oxygen proper excitations. In particular, the lowest-energy CT between the neighboring (formula presented) plaquettes accompanies Zhang-Rice singlet formation. Even the Cu (formula presented) spin flip can be observed as an inelastic scattering peak. Thus the O (formula presented) resonant XES can be a nice tool to investigate metal-ion-related excitations in oxides.
Original language | English |
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Pages (from-to) | 1-7 |
Number of pages | 7 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 65 |
Issue number | 14 |
DOIs | |
Publication status | Published - Jan 1 2002 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics