Full Elasticity Tensor from Thermal Diffuse Scattering.
We present a method for the precise determination of the full elasticity tensor from a single crystal diffraction experiment using monochromatic x rays. For the two benchmark systems calcite and magnesium oxide, we show that the measurement of thermal diffuse scattering in the proximity of Bragg reflections provides accurate values of the complete set of elastic constants. This approach allows for a reliable and model-free determination of the elastic properties and can be performed together with crystal structure investigation in the same experiment.
Department of Quantum Matter Physics, University of Geneva, 24, Quai Ernest Ansermet, CH-1211 Genève, Switzerland.|Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland.
Björn
B
Wehinger
European Synchrotron Radiation Facility, 71, Avenue des Martyrs, F-38000 Grenoble, France.
Alessandro
A
Mirone
European Synchrotron Radiation Facility, 71, Avenue des Martyrs, F-38000 Grenoble, France.
Michael
M
Krisch
European Synchrotron Radiation Facility, 71, Avenue des Martyrs, F-38000 Grenoble, France.
Alexeï
A
Bosak