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arXiv 0711.0910cond-mat.mtrl-sci
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利用共振拉曼光谱研究PbZr0. 52 Ti 0.48 O3的phase diagram

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

Jerome Rouquette, Julien Haines, Véronique Bornand, Marie Pintard, Philippe Papet, Jean Louis Sauvajol

摘要:

证据是第一次观察到的尖锐和连续的光谱变化在PbZr0.52Ti0.48O3(PZT)之间的350和10 K与647.1 nm波长是由于共振拉曼效应。这种现象可以用PZT粉末的自陷激子发射氧缺陷复合物(TiTi '-VO-)来解释,它的能量接近激光的辐射线。这种方法对于区分其他相关铁电/压电系统的相变序列也是非常有用的。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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