Infrared spectra and seebeck coefficient of LnCoO{sub 3} with the perovskite structure
Journal Article
·
· Journal of Solid State Chemistry
- Jeonju Univ., (Korea, Republic of); and others
The lattice vibrations in LnCoO{sub 3} perovskites (Ln = La, Pr, Nd, Sm, Eu, or Gd) have been investigated with reference to the lattice vibrations of the ideal cubic perovskite. These vibrations at room temperature indicate the structural changes with the change in the Ln ion. These frequencies are helpful in estimating the stability of the synthesized LnCoO{sub 3} phase. The temperature dependence of vibrational frequencies and the Seebeck coefficient reveal that the crystal symmetry is unchanged and the spin transition is due to the entropy increase of the 3d electrons with rising temperature.
- OSTI ID:
- 508697
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 112; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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