Ferroelectric-Specific Stark Effect in StoichiometricLiNbO3∶Feat Room Temperature

Autor:	V. É. Bursian, A. G. Razdobarin, A. A. Kaplyanskii, L. S. Sochava, Dean R. Evans, S. A. Basun
Rok vydání:	2008
Předmět:	Materials science Field (physics) Condensed matter physics General Physics and Astronomy Coercivity Ferroelectricity Spectral line law.invention Spontaneous polarization Condensed Matter::Materials Science symbols.namesake Stark effect law symbols Electron paramagnetic resonance Stoichiometry
Zdroj:	Physical Review Letters. 100
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.100.057602
Popis:	By means of EPR spectroscopy of ${\mathrm{LiNbO}}_{3}\ensuremath{\mathbin:}\mathrm{Fe}$ at room temperature (RT) it is shown that the Stark effect in ferroelectric crystals can be different from that observed in other materials. Novel properties appear when an external $E$ field reverses the direction of the spontaneous polarization, the direction of the linear Stark shift stays the same with a reversal of the $E$ field. The corresponding spectral line shifts can occur over a long time scale (hours). These properties seem to be a general feature of the Stark effect in ferroelectric crystals when the external $E$ field exceeds the coercive field.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf12b4ac4c8435736320c279e81fba06 https://doi.org/10.1103/physrevlett.100.057602 Zobrazit plný text záznamu