X-ray absorption spectroscopy of single-crystalline (VO)(2)P2O7: Electronic structure and possible exchange paths - art. no. 073103

Authors
Gerhold, S Nucker, N Kuntscher, CA Schuppler, S Stadler, S Idzerda, YU Prokofiev, AV Bullesfeld, F Assmus, W
Citation
S. Gerhold et al., X-ray absorption spectroscopy of single-crystalline (VO)(2)P2O7: Electronic structure and possible exchange paths - art. no. 073103, PHYS REV B, 6307(7), 2001, pp. 3103
Citations number
27
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6307
Issue
7
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010215)6307:7<3103:XASOS(>2.0.ZU;2-8
Abstract
Using polarization-dependent V 2p and O 1s near-edge x-ray absorption spect roscopy, we studied the unoccupied electronic structure of single-crystalli ne (VO)(2)P2O7 It is highly anisotropic, and shows similarities to vanadium oxides like VO2 and V2O5 at the V 2p edge and at the O Is threshold. The c ontributions from V-O and P-O orbitals could be identified. The results rul e out the spin ladder model for the magnetic behavior of (VO)(2)P2O7, but a re consistent with the alternating chain scenario.