Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-08-28
Physics
Condensed Matter
Strongly Correlated Electrons
5 figures
Scientific paper
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.
Ganorkar Shraddha
Priolkar K. R.
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