Issue |
EPL
Volume 81, Number 2, January 2008
|
|
---|---|---|
Article Number | 26004 | |
Number of page(s) | 6 | |
Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
DOI | https://doi.org/10.1209/0295-5075/81/26004 | |
Published online | 07 December 2007 |
High multipole transitions in NIXS: Valence and hybridization in
systems
1
Department of Physics, Simon Fraser University - Burnaby, BC, V5A 1S6, Canada
2
Department of Physics, University of Washington - Seattle, WA, 98105, USA
3
II. Physikalisches institut, Universität zu Köln - Zülpicher Str. 77, D-50937 Köln, Germany
4
Department of Physics and Astronomy, University of British Columbia - Vancouver, BC, V6T 1Z1, Canada
5
Department of Quantum Matter, ADSM, Hiroshima University - Higashi-Hiroshima 739-8530, Japan
6
Department of Chemistry, University of Western Ontario - London, Ontario, N6A 5B7, Canada
Corresponding author: ragordon@sfu.ca
Received:
10
October
2007
Accepted:
19
November
2007
Momentum-transfer dependent non-resonant inelastic X-ray
scattering measurements were made at the N
edges for
several rare-earth compounds. With increasing q, giant dipole resonances
diminish, to be replaced by strong multiplet lines at lower energy transfer.
These multiplets result from two different orders of multipole scattering
and are distinct for systems with simple
and
initial states. A
many-body theoretical treatment of the multiplets agrees well with the
experimental data on ionic La and Ce phosphate reference compounds. Comparing measurements on CeO2 and CeRh3 to the theory
and the phosphates indicates sensitivity to hybridization as observed by a
broadening of
-related multiplet features. We expect such strong,
non-dipole features to be generic for NIXS from f-electron systems.
PACS: 61.05.cf – X-ray scattering (including small-angle scattering) / 78.20.Bh – Theory, models, and numerical simulation / 61.05.cj – X-ray absorption spectroscopy: EXAFS, NEXAFS, XANES, etc.
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.