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@ARTICLE{Marino:611888,
author = {Marino, Andrea and Christovam, Denise S. and Takegami,
Daisuke and Falke, Johannes and Carvalho, Miguel M. F. and
Okauchi, Takaki and Chang, Chun-Fu and Altendorf, Simone G.
and Amorese, Andrea and Sundermann, Martin and Gloskovskii,
Andrei and Gretarsson, Hlynur and Keimer, Bernhard and
Andreev, Alexandr V. and Havela, Ladislav and Leithe-Jasper,
Andreas and Severing, Andrea and Kuneš, Jan and Tjeng, Liu
Hao and Hariki, Atsushi},
title = {{Q}uantifying the ${U} 5f$ covalence and degree of
localization in {U} intermetallics},
journal = {Physical review research},
volume = {6},
number = {3},
issn = {2643-1564},
address = {College Park, MD},
publisher = {APS},
reportid = {PUBDB-2024-05102},
pages = {033068},
year = {2024},
abstract = {A procedure for quantifying the U 5𝑓 electronic
covalency and degree of localization in U intermetallic
compounds is presented. To this end, bulk sensitive hard and
soft x-ray photoelectron spectroscopy were utilized in
combination with density-functional theory (DFT) plus
dynamical mean-field theory (DMFT) calculations. The energy
dependence of the photoionization cross sections allows the
disentanglement of the U 5𝑓 contribution to the
valence band from the various other atomic subshells so the
computational parameters in the DFT+DMFT can be reliably
determined. Applying this method to UGa$_2$ and UB$_2$ as
model compounds from opposite ends of the (de)localization
range, we have achieved excellent simulations of the valence
band and core-level spectra. The width in the distribution
of atomic U 5𝑓 configurations contributing to the
ground state, as obtained from the calculations, quantifies
the correlated nature and degree of localization of the U
5𝑓. The findings permit answering the longstanding
question why different spectroscopic techniques give
seemingly different numbers for the U 5𝑓 valence in
intermetallic U compounds.},
cin = {DOOR ; HAS-User / FS-PETRA-S},
ddc = {530},
cid = {I:(DE-H253)HAS-User-20120731 /
I:(DE-H253)FS-PETRA-S-20210408},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
DFG project 387555779 - Von versteckter bis
antiferromagnetischer Ordnung mit großem Moment in URu2Si2:
eine Röntgenstrahluntersuchung der 5f Besetzung und
Wellenfunktionssymmetrie. (387555779) / DFG project
521584902 - Systematische HAXPES-Studie von auf
Übergangsmetallen/Pb/Bi basierenden Energiematerialien
(521584902)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(GEPRIS)387555779 / G:(GEPRIS)521584902},
experiment = {EXP:(DE-H253)P-P01-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001270715500006},
doi = {10.1103/PhysRevResearch.6.033068},
url = {https://bib-pubdb1.desy.de/record/611888},
}