Página Inicial CNEA Laboratorio TANDAR Página Inicial TANDAR Historia del acelerador TANDAR Web interno Web mail
Inicio » Actividades I+D > Publicaciones 2002 > Ca1-xYxMnO3 manganites: synthesis and ES...
acta de conferencia
"Ca1-xYxMnO3 manganites: synthesis and ESR characterization"
O. Aguero, A.G. Leyva, D. Vega, G. Polla, P. Konig and M.T. Causa
Proc. of the "5th Latin American Workshop on Magnetism, Magnetic Materials and their Applications" (LAW3M '01), San Carlos de Bariloche, Río Negro, Argentina, September 3-7, 2001. Ed. C.A. Ramos, B. Alascio, M.T. Causa, M. Tovar.
Physica B Condens. Matter. 320(1-4) (2002) 47-50
Ceramic samples of Ca1-xYxMnO3 were synthesized by a liquid-mix method obtaining single phase materials, for 0.1 ≤ x ≤ 1; with orthorhombic structure. The cell volume increases with x indicating that changes in the Mn electronic state overcomes the progressive diminishing of the (Ca, Y) cationic radius, rCa > rY: We observed a continuous broadening of the electronic spin resonance line width with x. This is explained in terms of the increasing orthorhombic distortions. We have measured the DC magnetization for the x = 1 compound YMnO3. Our results are compatible with a G-type antiferromagnet with TN=44 K.
Av. Gral Paz y Constituyentes, San Martín, Pcia. de Buenos Aires, Argentina
Tel: (54-11) 6772-7007 - Fax: (54-11) 6772-7121