Elastic stiffness coefficients of thiourea from thermal diffuse scattering
Mirone, Alessandro
Stękiel, Michał
Spahr, Dominik
Morgenroth, Wolfgang
Haussühl, Eiken
Milman, Victor
Bosak, Alexei
Ivashko, Oleh
von Zimmermann, Martin
Dippel, Ann-Christin
Winkler, Björn
DOI: https://doi.org/10.1107/S1600576720016039
Persistent URL: http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/8471
Stękiel, Michał; 1Institute of Geosciences, Goethe University Frankfurt,Altenhöferallee 1, Frankfurt am Main, Germany
Spahr, Dominik; 1Institute of Geosciences, Goethe University Frankfurt,Altenhöferallee 1, Frankfurt am Main, Germany
Morgenroth, Wolfgang; 1Institute of Geosciences, Goethe University Frankfurt,Altenhöferallee 1, Frankfurt am Main, Germany
Haussühl, Eiken; 1Institute of Geosciences, Goethe University Frankfurt,Altenhöferallee 1, Frankfurt am Main, Germany
Milman, Victor; 4Dassault Systèmes BIOVIA, Cambridge, United Kingdom
Bosak, Alexei; 3European Synchrotron Radiation Facility, 71 avenue des Martyrs, Grenoble, France
Ivashko, Oleh; 2Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg, Germany
von Zimmermann, Martin; 2Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg, Germany
Dippel, Ann-Christin; 2Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg, Germany
Winkler, Björn; 1Institute of Geosciences, Goethe University Frankfurt,Altenhöferallee 1, Frankfurt am Main, Germany
Abstract
The complete elastic stiffness tensor of thiourea has been determined from thermal diffuse scattering (TDS) using high‐energy photons (100 keV). Comparison with earlier data confirms a very good agreement of the tensor coefficients. In contrast with established methods to obtain elastic stiffness coefficients (e.g. Brillouin spectroscopy, inelastic X‐ray or neutron scattering, ultrasound spectroscopy), their determination from TDS is faster, does not require large samples or intricate sample preparation, and is applicable to opaque crystals. Using high‐energy photons extends the applicability of the TDS‐based approach to organic compounds which would suffer from radiation damage at lower photon energies.
The elastic stiffness coefficients of thiourea are determined from thermal diffuse scattering. image