1. k = 0 Magnetic Structure and Absence of Ferroelectricity in SmFeO3.
- Author
-
Kuo, C.-Y., Drees, Y., Fernández-Díaz, M. T., Zhao, L., Vasylechko, L., Sheptyakov, D., Bell, A. M. T., Pi, T. W., Lin, H.-J., Wu, M.-K., Pellegrin, E., Valvidares, S. M., Li, Z. W., Adler, P., Todorova, A., Küchler, R., Steppke, A., Tjeng, L. H., Hu, Z., and Komarek, A. C.
- Subjects
- *
SAMARIUM compounds , *SINGLE crystals , *NEUTRON diffraction , *MAGNETIC structure , *MAGNETOELASTIC effects , *FERROELECTRICITY - Abstract
SmFeO3 has attracted considerable attention very recently due to its reported multiferroic properties above room temperature. We have performed powder and single crystal neutron diffraction as well as complementary polarization dependent soft X-ray absorption spectroscopy measurements on floating-zone grown SmFeO3 single crystals in order to determine its magnetic structure. We found a k = 0 G-type collinear antiferromagnetic structure that is not compatible with inverse Dzyaloshinskii-Moriya interaction driven ferroelectricity. While the structural data reveal a clear sign for magneto-elastic coupling at the Neel-temperature of ∼675 K, the dielectric measurements remain silent as far as ferroelectricity is concerned. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF