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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2006

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

Résumé

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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Dates et versions

hal-00185225 , version 1 (06-11-2007)

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Jerome Rouquette, Julien Haines, Véronique Bornand, Marie Pintard, Philippe Papet, et al.. Use of resonance Raman spectroscopy to study the phase diagram of PbZr0.52Ti0.48O3. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2006, 73, pp.224118. ⟨10.1103/PhysRevB.73.224118⟩. ⟨hal-00185225⟩
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