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Magnon scattering processes and low temperature resistivity in CMR manganites

N. Furukawa·Y. Shimomura·T. Akimoto·Y. Moritomo
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Abstract

Low temperature resistivity of CMR manganites is investigated. At the ground state, conduction electrons are perfectly spin polarized, which is called half-metallic. From one-magnon scattering processes, it is discussed that the resistivity of a half metal as a function of temperature scales as rho(T) - rho(0) propto T^3. We take (Nd,Tb,Sr)MnO_3 as an example to compare theory and experiments. The result is in a good agreement.

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N. Furukawa, Y. Shimomura, T. Akimoto, Y. Moritomo. 2000-09-04. Magnon scattering processes and low temperature resistivity in CMR manganites. https://doi.org/10.1016/s0304-8853(00)00748-4

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