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Resent developments in K.sub.1-x./sub.Li.sub.x./sub.Ta.sub.1-y./sub.Nb.sub.y./sub.O.sub.3./sub. investigations
- 1.0134020 - FZU-D 20020308 RIV GB eng J - Journal Article
Trepakov, V. - Galinetto, P. - Giulotto, E. - Samoggia, G. - Savinov, Maxim - Vikhnin, V. - Kapphan, S. - Jastrabík, Lubomír - Boatner, L.
Resent developments in K1-xLixTa1-yNbyO3 investigations.
Ferroelectrics. Roč. 267, - (2002), s. 221-228. ISSN 0015-0193. E-ISSN 1563-5112
R&D Projects: GA MŠMT LN00A015; GA ČR GA202/00/1425
Institutional research plan: CEZ:AV0Z1010914
Keywords : incipient ferroelectrics * impurity effects * phase transitions
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.408, year: 2002
KTaO3 with small amount (x<0.01) of Li and simultaneously diluted by Nb (K1-xLixTayNb1-yO3, KLTN) reveals original dipole ordering structural effects. Small Nb co-dopings (y<0.007) enhance the trend of the Li+ off-centers related subsystem towards cooperative ordering and order-disorder phase transitions.A possible model developed is based on the Li-Nb polar clusters, local configuration instabilities and superparaelectricity conceptions.
Permanent Link: http://hdl.handle.net/11104/0031961
Number of the records: 1