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@ARTICLE{Keller:599266,
author = {Keller, Thomas F. and Shayduk, Roman and Kim, Chan and
Mukharamova, Nastasia and Pandey, Arti Dangwal and Abuin,
Manuel and Vonk, Vedran and Fernandez-Cuesta, Irene and
Barthelmess, Miriam and Froemter, Robert and Zozulya, Alexey
and Erbe, Artur and Stierle, Andreas},
title = {{C}oherent x-ray diffraction of a semiregular {P}t nanodot
array},
journal = {Physical review / B},
volume = {108},
number = {13},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {PUBDB-2023-07273},
pages = {134109},
year = {2023},
note = {NFFA Grant 101007417},
abstract = {Structural insight into nano-objects down to the atomic
scale is one of the most important prerequisites
tounderstand the properties of functional materials and will
ultimately permit one to relate the size and shape
ofnanoparticles to their catalytic activity. We elucidate
the potential of extracting structural information abouta
small ensemble of nanoparticles that are semiregularly
arranged on a periodic array from coherent x-rayBragg
diffraction. The observed fringe pattern in the Pt(111)
Bragg peak obviously originates from the mutualinterference
of the Bragg scattered wave field from individual
nanoparticles in the nanoarray. Despite the absenceof a
symmetry center in the Bragg peak of the nanoarray, we
identify the most prominent in-plane spatialfrequencies of
the latter by applying a Patterson map analysis to the Bragg
peak superstructure. Integrationalong the in-plane
reciprocal space direction over the relevant in-plane
regions of interest results in Laueoscillations that arise
from nanoparticle sets of similar heights in real space. A
one-to-one comparison withreal-space microscopic information
obtained from scanning electron microscopy and atomic force
microscopysuggests potential nanoparticle subsets as the
origin for the x-ray intensity in these regions of interest
by the goodagreement in their height and direction-dependent
in-plane interparticle distances, as also further supported
bysimulations. Nanoparticle arrays with well-defined tunable
sizes and lateral distances may serve in the future totrack
structural changes in, e.g., sizes, relative positions, and
tilts of smallest’ catalysis-relevant nanoparticlesduring
operando heterogeneous catalysis experiments in the
10-nm-size regime.},
cin = {FS-NL / CFEL-I},
ddc = {530},
cid = {I:(DE-H253)FS-NL-20120731 / I:(DE-H253)CFEL-I-20161114},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
NEP - Nanoscience Foundries and Fine Analysis - Europe|PILOT
(101007417)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(EU-Grant)101007417},
experiment = {EXP:(DE-H253)P-P10-20150101 /
EXP:(DE-H253)Nanolab-04-20150101 /
EXP:(DE-H253)Nanolab-01-20150101 /
EXP:(DE-H253)Nanolab-03-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001095944000001},
doi = {10.1103/PhysRevB.108.134109},
url = {https://bib-pubdb1.desy.de/record/599266},
}