We address the issues raised in the preceding Comments by Vankó and de Groot [Phys. Rev. B 75, 177101 (2007)] and Lin et al. [Phys. Rev. B 75, 177102 (2007)] regarding possible ways to analyze x-ray emission spectroscopy data and determine the actual spin state of (Mg,Fe)O at high pressures. We show that there are significant pressure-induced changes in the x-ray emission spectra of (Mg,Fe)O that are not coupled with spin changes and that traditional methods of spin state determination have limited application. Our experimental results from nuclear forward scattering confirm the conventional Mössbauer spectroscopy results reported in Kantor et al. [Phys. Rev. B 73, 100101(R) (2006)].

• Received 7 March 2007

DOI:https://doi.org/10.1103/PhysRevB.75.177103