UC Berkeley

We became aware of uncertainties about lattice parameters for osmium in Table 1 and B.K. Godwal (with the Department of Earth and Planetary Science at UC Berkeley) has reanalyzed the radial diamond anvil cell diffraction data, measured in situ at high pressure and compressive stress, with the Moment Pole Stress model in an advanced MAUD Rietveld technique (Wenk et al., 2014), taking into account lattice distortion under stress. [Table presented] The new results compare much better with data from hydrostatic experiments (Godwal et al., 2012). Since the emphasis of the paper was on mechanical twinning, we did not pay much attention to lattice distortion. Note that standard deviations are based on the Rietveld fit.