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Single crystals of La 1−x Bi x Mn α O 3±β and La 1−x−y Bi x A y Mn α O 3±β (A=Ba, Pb) are grown, their crystal and electron structure is studied. Relative Mn 3+ /Mn 4+ abundance in each single crystal is determined via fitting experimental Mn2p-spectra with weighted superposition of theoretical spectra of tri-...
Valence state of Mn in La 1−α Bi β Mn 1+δ O 3±γ (LBMO) ceramic samples and in orthorhombic manganates RMn 2 O 5 (R=Y, Bi, Eu, Gd), is studied using Mn 2p- and Mn 3s-spectra. Both Mn 3+ and Mn 4+ ions are shown to be present in those compounds. Relative Mn 3+ /Mn 4+ ions contents are determined by fitting experimental Mn...
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