Using single crystal susceptibility, Mössbauer and magnetoelectric measurements, the nature of the two low temperature phase transitions in the clinopyroxine metagermanate FeGeO3 is studied. It is concluded that FeGeO3 orders antiferromagnetically along the unique b axis at TN = 47 ± 1°K and undergoes a spontaneous, second-order phase transition of the spin reorientation type at TR = 17 ± 3°K. Only below TR does FeGeO3 exhibit magnetoelectricity.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Materials Chemistry