Dynamic Displacement Disorder of Cubic BaTiO₃
The three-dimensional distribution of the x-ray diffuse scattering intensity of BaTiO 3 has been recorded in a synchrotron experiment and simultaneously computed using molecular dynamics simulations of a shell model. Together, these have allowed the details of the disorder in paraelectric BaTiO 3 to be clarified. The narrow sheets of diffuse scattering, related to the famous anisotropic longitudinal correlations of Ti ions, are shown to be caused by the overdamped anharmonic soft phonon branch....[Show more]
|Collections||ANU Research Publications|
|Source:||Physical Review Letters|
|Access Rights:||Open Access|
|01_Pasciak_Dynamic_Displacement_Disorder_2018.pdf||612.29 kB||Adobe PDF|
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