2006
DOI: 10.3989/cyv.2006.v45.i3.312
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Estudio de la posible coexistencia de ferromagnetismo y orden de carga en óxidos cerámicos Bi<sub>1-x</sub>Sr<sub>x</sub>MnO<sub>3</sub> (x﹤0.3)

Abstract: The possible coexistence of ferromagnetism and charge/orbital order in Bi 3/4 Sr 1/4 MnO 3 has been investigated. The manganite Bi 0.75 Sr 0.25 MnO 3 , with commensurate charge balance, undergoes an electronic transition at T CO~6 00 K that produces a longrange modulation with double periodicity along a and c axis, and unusual anisotropic evolution of the lattice parameters. The previously proposed ferromagnetic properties of this new ordered phase were studied by magnetometry and diffraction techniques. In ze… Show more

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“…Sol-gel synthesis was chosen with the purpose of obtaining a single-phase material at relatively low temperature to minimize a possible Bi deficiency due to evaporation. A detailed description of sample preparation and preliminary characterization has been previously reported in [7,9,15].…”
Section: Methodsmentioning
confidence: 99%
“…Sol-gel synthesis was chosen with the purpose of obtaining a single-phase material at relatively low temperature to minimize a possible Bi deficiency due to evaporation. A detailed description of sample preparation and preliminary characterization has been previously reported in [7,9,15].…”
Section: Methodsmentioning
confidence: 99%