Universität zu Köln

Sundermann, M., van der Laan, G., Severing, A., Simonelli, L., Lander, G. H., Haverkort, M. W. and Caciuffo, R. (2018). Crystal-field states of UO2 probed by directional dependence of nonresonant inelastic x-ray scattering. Phys. Rev. B, 98 (20). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

Full text not available from this repository.

Abstract

Nonresonant inelastic x-ray scattering (NIXS) has been performed on single crystals of UO2 to study the directional dependence of higher-order-multipole scattering from the uranium O-4,O-5 edges (90-110 eV). By comparing the experimental results with theoretical calculations the symmetry of the ground state is confirmed directly as the crystal-field (CF) Gamma(5) triplet state within the J = 4 manifold. The results demonstrate that the directional dichroism of the NIXS spectra is sensitive to the CF strength and establish NIXS as a tool for probing CF interactions quantitatively.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sundermann, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED van der Laan, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Severing, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Simonelli, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lander, G. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Haverkort, M. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Caciuffo, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-166044
DOI:	10.1103/PhysRevB.98.205108
Journal or Publication Title:	Phys. Rev. B
Volume:	98
Number:	20
Date:	2018
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language URANIUM-DIOXIDE; MAGNETIC EXCITATIONS; URU2SI2; SYSTEMS; SURFACE Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/16604