Magnetic transition in compressed Fe 3 C from x-ray emission spectroscopy

The magnetic properties of iron in cementite sFe3Cd have been measured by x-ray emission spectroscopy in a diamond cell up to 45 GPa. The Fe-K b fluorescence peaks reveal that Fe 3C undergoes a magnetic collapse at approximately 25 GPa, consistent with theoretical predictions. This transition is likely to be a second-order phase transition without a major… (More)