Nuclear and magnetic structure of magnetite under pressure to 5.3 GPa and at low temperatures to 130 K by neutron scattering

Abstract

Neutron powder diffraction data are reported on well-characterized samples of magnetite under hydrostatic pressure between 0 and 5.3 GPa and in the temperature range 130-300 K. We find that the inverse spinel structure is stable under these conditions, that there is no change in the long-range ferrimagnetic order, and that the refined structural coordinates related to it (oxygen internal coordinate and magnetic moments) are pressure and temperature independent in the P T range considered. © 2006 The American Physical Society.