Magnon scattering processes and low temperature resistivity in CMR manganites

N. Furukawa; Y. Shimomura; T. Akimoto; Y. Moritomo

doi:10.1016/S0304-8853(00)00748-4

Magnon scattering processes and low temperature resistivity in CMR manganites

Strongly Correlated Electrons 2009-10-31 v1 Materials Science

Authors: 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.

Keywords

CMR manganites half-metal magnon scattering low temperature resistivity T^3 law spin polarization

Cite

@article{arxiv.cond-mat/0009036,
  title  = {Magnon scattering processes and low temperature resistivity in CMR manganites},
  author = {N. Furukawa and Y. Shimomura and T. Akimoto and Y. Moritomo},
  journal= {arXiv preprint arXiv:cond-mat/0009036},
  year   = {2009}
}

Comments

To appear in Proc. ICM 2000

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