Polarized neutron study of the magnetization density in
Laboratoire de Magnétisme L. Néel, CNRS, 166X, 38042 Grenoble, France
2 Laboratoire L. Brillouin, CEA-CNRS, 91191 Gif sur Yvette, France
3 Laboratoire de Chimie des Solides, URA 446, CNRS, 91405 Orsay, France
Accepted: 13 February 1998
The magnetization density has been studied by polarized neutron scattering in the ferromagnetic manganite at 20 K and at 290 K, close to the Curie point. A weak preponderance of Mn wave functions is observed, as well as a positive polarization on oxygen. At low temperature, the density on Mn corresponds to a well-localized moment of and a more diffuse component. Heating the sample leads to a non-uniform renormalization of the magnetization density.
PACS: 75.25.+z – Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc.)
© EDP Sciences, 1998