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"Charge Ordering in the Electron Doped Ca1-xYxMnO3 Manganites"
D. Vega, C. Ramos, H. Aliaga, M.T. Causa, B. Alascio, M. Tovar, G. Polla, G. Leyva, P. König and I. Torriani
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) 37-39
Structural studies on the electron doped Ca1-xYxMnO3 are presented. At 300 K, orthorhombic O-phase was observed in all cases, associated to low electric resistivity and high Curie-Weiss temperature. For samples with x > 0.07; structural phase transitions to more distorted orthorhombic and monoclinic phases were found at T < 170K. In these phases only weak ferromagnetic interactions were observed.
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