Soft modes in semiconducting SrTiO3: II. The ferroelectric mode

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1980 English Publisher:Springer Science and Business Media LLCJournal:Zeitschrift f�r Physik B Condensed Matter, volume 38, pages 335-339 (issn: 0340-224X, eissn: 1434-6036,

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Authors: D. B�uerle; D. Wagner; M. W�hlecke; B. Dorner; H. Kraxenberger;

doi: 10.1007/bf01315325

Soft modes in semiconducting SrTiO3: II. The ferroelectric mode

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Abstract

The frequency, temperature and wavevector dependence of the ferroelectric soft mode in semiconducting SrTiO3 was investigated by temperature derivative Raman spectroscopy and by inelastic neutron scattering. A tremendous shift in mode frequency with “free” electron and oxygen vacancy concentration, respectively, was observed.

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