Raman scattering study of Nd1−xSrxMnO3 (x = 0.3, 0.5)

@article{Choi2003RamanSS,
  title={Raman scattering study of Nd1−xSrxMnO3 (x = 0.3, 0.5)},
  author={K Y Choi and Peter Lemmens and G. Gu ̈ ntherodt and M. Pattabiraman and Goutham Rangarajan and Vladimir Gnezdilov and Geetha Balakrishnan and Don Mck. Paul and Martin Richard Lees},
  journal={Journal of Physics: Condensed Matter},
  year={2003},
  volume={15},
  pages={3333-3342}
}
We report on polarized Raman scattering of single crystals of Nd1−xSrxMnO3 (x = 0.3, 0.5). Raman spectra of Nd0.7Sr0.3MnO3 show a significant change through the metal–insulator transition. In the ferromagnetic metallic phase phonon modes grow in intensity and number while the electronic continuum becomes more pronounced. We suggest that these effects are due to the strong competition between the localization and the delocalization of carriers which is the origin of the largest colossal… 
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