Speaker
Nikolas Kraft
Description
We studied the structure of UO2 and its temperature dependence from 300 K to 20 K using synchrotron single crystal diffraction. Our samples were UO2 single crystals with a close stoichiometry, confirmed by Raman spectroscopy measurements. Anomalies in lattice parameters will be discussed as well as electron density measurements both above and below the magnetic phase transition, which is believed to lead to distortions in the oxygen sublattice and thus symmetry reduction.
Primary author
Nikolas Kraft
Co-authors
Gabriel Murphy
(FZ Jülich)
Alekseev Evgeny
(FZ Jülich)
Lkhamsuren Bayarjargal
(Goethe-Universität Frankfurt am Main)
Sven Vogel
(Los Alamos Neutron Science Center)
Ann-Christin Dippel
(Deutsches Elektronen-Synchrotron DESY)
Oleh Ivashko
(Deutsches Elektronen-Synchrotron DESY)
Martin v. Zimmermann
(Deutsches Elektronen-Synchrotron DESY)
Alexei Bosak
(European Synchrotron Radiation Facility ESRF)
Chris Stanek
(Los Alamos National Laboratory)
Caitlin Taylor
(Los Alamos National Laboratory)
Eric Tegtmeier
(Los Alamos National Laboratory)
Joshua White
(Los Alamos National Laboratory)
Björn Winkler
(Goethe-Universität Frankfurt am Main)
