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- W2039969476 abstract "The manganese perovskites, Ln1-xAxMnO3 (A = Ca, Sr, Ba) exhibit various structural distortions which influence dramatically their magnetic and transport properties. This is illustrated by the magnetic phase diagrams of the systems LnMnO3-AMnO3 with Ln = La, Pr, Sm and A = Ca, Sr. In these systems, charge and orbital ordering and phase separation phenomena are observed, which play an important role in the competition between ferromagnetism and antiferromagnetism. The doping of the Mn-sites of those oxides represents a very important issue, since it modifies dramatically their magnetic phase diagrams. Magnetic cations (Cr, Co, Ni, Ru, Rh, Ir) induce ferromagnetism and metallicity, whereas non magnetic cations (Ga, In, Mg, Ti, Sn) lead to a spin glass behaviour. A new phenomena is evidenced : it concerns the appearance of sharp magnetisation steps, at increasing magnetic field at very low temperature (T ≤ 5 K), which is interpreted as a martensiticlike transformation." @default.
- W2039969476 created "2016-06-24" @default.
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- W2039969476 date "2004-01-01" @default.
- W2039969476 modified "2023-10-05" @default.
- W2039969476 title "Metallic Conductivity and Magnetism: The Great Potential of Manganese and Cobalt Perovskites" @default.
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- W2039969476 doi "https://doi.org/10.1007/978-1-4020-2349-1_3" @default.
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