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- W1976972586 abstract "Abstract The magnetic and electrical transport properties of La 0.9 Mn 0.9 M 0.1 O 3 ( M =Mn, Zn and Ti) were investigated. The temperature and magnetic field dependence of electrical resistivity ( ρ ) and dc magnetization were studied. All the compounds are found in rhombohedral structure. The excess oxygen in all three compounds was detected through iodometric titration. A modification in resistivity is observed when M =Mn is replaced by M =Zn and Ti. The high temperature resistivity above T C follow variable range hopping model for both Zn and Ti compounds. For Zn doping, the observation of large field-cool effect and decrease in resistivity at room temperature and is assumed to be due to the implant of Mn 4+ in Mn 3+ matrix, which favor Mn 3+ /Mn 4+ double exchange. The ferromagnetic behavior below T C for the compound with M =Ti is correlated to the excess oxygen in it, which implants Mn 4+ and thus incorporates ferromagnetic interactions. The substitutions lead to a reduction of T c and magnetization." @default.
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- W1976972586 date "2012-07-01" @default.
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- W1976972586 title "Magnetic and electrical transport properties in the self-doped manganite La0.9Mn0.9M0.1O3 (M=Mn, Zn and Ti)" @default.
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- W1976972586 doi "https://doi.org/10.1016/j.physb.2012.03.043" @default.
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