5f covalency from x-ray resonant Raman spectroscopy

Abstract X-ray resonant Raman spectroscopy (XRRS), a variant of resonant inelastic x-ray scattering, has been used to investigate the two prototype systems, UF 4 and UO 2 . Both are U5f 2 and each is an example of 5f localized, ionic behavior and 5f localized, covalent behavior, respectively. From t...

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Bibliographic Details
Published in:	Journal of physics. Condensed matter 2022-12, Vol.34 (50), p.505601
Main Authors:	Tobin, J G, Nowak, S, Yu, S-W, Alonso-Mori, R, Kroll, T, Nordlund, D, Weng, T-C, Sokaras, D
Format:	Article
Language:	eng
Subjects:	covalency MATERIALS SCIENCE Raman resonant spectroscopy x-ray
Online Access:	Get full text
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Summary:	Abstract X-ray resonant Raman spectroscopy (XRRS), a variant of resonant inelastic x-ray scattering, has been used to investigate the two prototype systems, UF 4 and UO 2 . Both are U5f 2 and each is an example of 5f localized, ionic behavior and 5f localized, covalent behavior, respectively. From the M 5 XRRS measurements, the 5f band gap in each can be directly determined and, moreover, a clear and powerful sensitivity to 5f covalency emerges.
ISSN:	0953-8984 1361-648X