Dimensional Crossover driven by Magnetic Ordering in Optical Conductivity of Pr_{1/2}Sr_{1/2}MnO_3

J. H. Jung; E. J. Choi; H. J. Lee; Jaejun Yu; Y. Moritomo; T. W. Noh

doi:10.1103/PhysRevB.61.14656

Dimensional Crossover driven by Magnetic Ordering in Optical Conductivity of Pr_{1/2}Sr_{1/2}MnO_3

Strongly Correlated Electrons 2009-10-31 v1

Authors: J. H. Jung , E. J. Choi , H. J. Lee , Jaejun Yu , Y. Moritomo , T. W. Noh

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Abstract

We investigated optical properties of Pr_{0.5}Sr_{0.5}MnO_3, which has the A-type antiferromagnetic ordering at a low temperature. We found that T- dependence of spectral weight transfer shows a clear correlation with the magnetic phase transition. In comparison with the optical conductivity results of Nd_{0.5}Sr_{0.5}MnO_3, which has the CE-type antiferromagnetic charge ordering, we showed that optical properties of Pr_{0.5}Sr_{0.5}MnO_3 near the Neel temperature could be explained by a crossover from 3D to 2D metals. Details of spectral weight changes are consistent with the polaron picture.

Keywords

optical conductivity magnetic ordering dimensional crossover Pr_{0.5}Sr_{0.5}MnO_3 polaron picture

Cite

@article{arxiv.cond-mat/9906265,
  title  = {Dimensional Crossover driven by Magnetic Ordering in Optical Conductivity of Pr_{1/2}Sr_{1/2}MnO_3},
  author = {J. H. Jung and E. J. Choi and H. J. Lee and Jaejun Yu and Y. Moritomo and T. W. Noh},
  journal= {arXiv preprint arXiv:cond-mat/9906265},
  year   = {2009}
}

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11 pages, 4 figures, submitted to PRL at June 1

Dimensional Crossover driven by Magnetic Ordering in Optical Conductivity of Pr_{1/2}Sr_{1/2}MnO_3

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