title: Microphase separation in Pr0.67Ca0.33MnO3 by small-angle neutron scattering.
abstract: We have evidenced by small-angle neutron scattering at low temperature the coexistence of ferromagnetism (F) and antiferromagnetism (AF) in Pr0.67Ca0.33MnO3. The results are compared to those obtained in Pr0.80Ca0.20MnO3 and Pr0.63Ca0.37MnO3, which are F and AF, respectively. Quantitative analysis shows that the small-angle scattering is not due to a mesoscopic mixing but to a nanoscopic electronic and magnetic "red cabbage" structure, in which the ferromagnetic phase exists in the form of thin layers in the AF matrix (stripes or 2D "sheets").
authors.affiliation: Laboratoire CRISMAT, Unité Mixte de Recherches 6508, Institut des Sciences de la Matière et du Rayonnement - Université de Caen, 6 Boulevard du Maréchal Juin, 14050 Caen Cedex, France.
authors.forename: Ch
authors.initials: Ch
authors.lastname: Simon
authors.forename: S
authors.initials: S
authors.lastname: Mercone
authors.forename: N
authors.initials: N
authors.lastname: Guiblin
authors.forename: C
authors.initials: C
authors.lastname: Martin
authors.forename: A
authors.initials: A
authors.lastname: Brûlet
authors.forename: G
authors.initials: G
authors.lastname: André