Infra-red Spectroscopic Studies of GdBaCo2O5.5

Shraddha Ganorkar; K. R. Priolkar

doi:10.1016/j.ssc.2010.08.031

Infra-red Spectroscopic Studies of GdBaCo2O5.5

Strongly Correlated Electrons 2015-05-19 v1

Authors: Shraddha Ganorkar , K. R. Priolkar

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Abstract

This paper reports infrared spectroscopic studies on GdBaCo $_{2}$ O $_{5.5}$ layered perovskite which exhibits successive magnetic transitions from paramagnetic to ferromagnetic to antiferromagnetic states as well as high temperature metal to insulator transition and a change in charge transport mechanism at low temperature. Infrared absorption spectra recorded at various temperatures in the range 80 K to 350 K reveal changes in the positions of Co-O stretching and bending frequencies which provide an explanation to the magnetic and transport behaviour of this compound.

Keywords

infrared spectroscopy GdBaCo2O5.5 layered perovskite magnetic transitions metal-insulator transition charge transport mechanism

Cite

@article{arxiv.1008.4847,
  title  = {Infra-red Spectroscopic Studies of GdBaCo2O5.5},
  author = {Shraddha Ganorkar and K. R. Priolkar},
  journal= {arXiv preprint arXiv:1008.4847},
  year   = {2015}
}

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