Spin/Orbital Pattern-Dependent Polaron Absorption in Nd(1-x)Sr(x)MnO3

M. W. Kim; J. H. Jung; K. H. Kim; H. J. Lee; Jaejun Yu; T. W. Noh; Y. Moritomo

doi:10.1103/PhysRevLett.89.016403

Spin/Orbital Pattern-Dependent Polaron Absorption in Nd(1-x)Sr(x)MnO3

Strongly Correlated Electrons 2009-11-07 v1

Authors: M. W. Kim , J. H. Jung , K. H. Kim , H. J. Lee , Jaejun Yu , T. W. Noh , Y. Moritomo

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Abstract

We investigated optical properties of Nd(1-x)Sr(x)MnO3 (x= 0.40, 0.50, 0.55, and 0.65) single crystals. In the spin/orbital disordered state, their conductivity spectra look quite similar, and the strength of the mid-infrared absorption peak is proportional to x(1-x) consistent with the polaron picture. As temperature lowers, the Nd(1-x)Sr(x)MnO3 samples enter into various spin/orbital ordered states, whose optical responses are quite different. These optical responses can be explained by the spin/orbital ordering pattern-dependent polaron hopping.

Keywords

optical properties spin-orbital ordering polaron absorption NdMnO3 magnetic field

Cite

@article{arxiv.cond-mat/0203201,
  title  = {Spin/Orbital Pattern-Dependent Polaron Absorption in Nd(1-x)Sr(x)MnO3},
  author = {M. W. Kim and J. H. Jung and K. H. Kim and H. J. Lee and Jaejun Yu and T. W. Noh and Y. Moritomo},
  journal= {arXiv preprint arXiv:cond-mat/0203201},
  year   = {2009}
}

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