Use of resonance Raman spectroscopy to study the phase diagram of PbZr0.52Ti0.48O3

Details Use of resonance Raman spectroscopy to study the phase diagram of PbZr0.52Ti0.48O3 Use of resonance Raman spectroscopy to study the phase diagram of PbZr0.52Ti0.48O3

2007-11-06

arxiv.org/abs/0711.0910v1

Physical Review B 73 (2006) 224118

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.73.224118

Evidence is presented for the first time that the sharp and continuous spectral changes observed in PbZr0.52Ti0.48O3 (PZT) between 350 and 10 K with the 647.1 nm wavelength are due to a resonance Raman effect. Such a phenomenon can be explained by means of a self-trapped exciton emission oxygen deficient complex (TiTi' - VO-) of PZT powder whose energy is close to the radiation line of the laser. This kind of approach should also be very useful to distinguish the phase transition sequence for other related ferro/ piezoelectric systems.

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