Synthesis and characterization of La0.7Sr0.3Mn1−x TixO3 manganites

Autor: Alexandr Tovstolytkin, O. Z. Yanchevskiĭ, Oleg V'yunov, Anatolii Belous, V. P. Kravchik
Rok vydání: 2006
Předmět:
Zdroj: Physics of the Solid State. 48:709-716
ISSN: 1090-6460
1063-7834
DOI: 10.1134/s1063783406040159
Popis: The structural, electrical and magnetic properties of the La0.7Sr0.3Mn1−x TixO3 system characterized by rhombohedral lattice distortions are studied. Substitution of titanium for manganese weakens ferromagnetism and leads to an increased resistivity. Using x-ray Rietveld full-profile refinement data and ferromagnetic resonance spectra, it is demonstrated that titanium substitution for manganese occurs with charge compensation according to the equation Mn4+ → Ti4+ and with a simultaneous decrease in the oxygen nonstoichiometry as the value of x increases.
Databáze: OpenAIRE