Mar, 2007
Hard X-ray and soft X-ray photoemission study of vanadium oxides
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
- Volume
- 310
- Number
- 2
- First page
- E289
- Last page
- E291
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1016/j.jmmm.2006.10.207
- Publisher
- ELSEVIER SCIENCE BV
We study the electronic structure of Mott-Hubbard systems SrVO3 and CaVO3 with photoemission spectroscopy (PES) using hard Xrays (HX) (hv similar to 8 keV) and soft X-rays (SX) (hv similar to 900 eV). In HX-PES results, the V 2p core levels of SrVO3 and CaVO3 show clear additional intensity, which are not observed in SX-PES. These features originate from bulk screening by coherent states at Fermi level as observed in other 3d transition metal oxides. From the comparison between SrVO3 and CaVO3 in HX-PES, the intensity in SrVO3 is nearly similar to CaVO3. The results suggest screening from coherent states is more efficient in HX-PES compared to SX-PES. (c) 2006 Elsevier B.V. All rights reserved.
- Link information
- ID information
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- DOI : 10.1016/j.jmmm.2006.10.207
- ISSN : 0304-8853
- Web of Science ID : WOS:000247618700011