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- W2360877568 abstract "By measuring M-T curves and ρ-T curves, we have studied the influence of low Er doping (0.0≤x≤0.20) on magnetic and electric properties of La-{0.67}Sr-{0.33}MnO-3. We found that the substitution for La site by a smaller rare-earth ion Er reduces both Curie temperature and magnetization, which is regarded as the result from that the decreasing of ion radius at A site causes larger distortion of Mn-O-Mn bonds and weakens double-exchange interaction. At the same time, local magnetic moment of rare-earth ion affects physical properties of the system. At FM phase, the system is dominated by single magneton scattering and shows metallic conduction which can be fitted by the formula $ρ=ρ-0+AT+2;$ While in the low temperature the resistivity behavior deviates from T+2 relation, which can be understood in terms of the significant contribution from the scattering of local magnetic moments of Er ions on carriers. The two transport properties of small polaron in PM phase and single magneton in FM phase coexist at the temperature region of phase transition." @default.
- W2360877568 created "2016-06-24" @default.
- W2360877568 creator A5063569937 @default.
- W2360877568 date "2004-01-01" @default.
- W2360877568 modified "2023-09-23" @default.
- W2360877568 title "INFLUENCE OF LOW Er DOPING (0.0≤x≤0.20) ON TRANSPORT BEHAVIOR IN La_(0.67)Sr_(0.33)MnO_3" @default.
- W2360877568 hasPublicationYear "2004" @default.
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