Number of the records: 1
Dielectric permittivityand Fe- and Cu-doping effect in KTaO.sub.3./sub. and K.sub.1-x./sub.Li.sub.x./sub.TaO.sub.3./sub..
- 1.0133224 - FZU-D 20010016 RIV GB eng J - Journal Article
Trepakov, V. A. - Vikhnin, V. A. - Savinov, Maxim - Syrnikov, P. P. - Kapphan, S. - Lemanov, V. - Hesse, H. - Jastrabík, Lubomír
Dielectric permittivityand Fe- and Cu-doping effect in KTaO3 and K1-xLixTaO3.
Ferroelectrics. Roč. 253, - (1999), s. 58-75. ISSN 0015-0193. E-ISSN 1563-5112
Institutional research plan: CEZ:AV0Z1010914
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.533, year: 1999
The temperature-frequency behavior of the permittivity eta'(T,f) and tan[delta(T,F)](5-300 K, 100Hz-1MHz) were comparatively studied in nominal pure KTaO_3 and K_1-xLi_xTaO_3 (x=0.001, 0.01 and 0.03) doped by Cu and Fe single crystals. The possible mechanisms of polarization relaxation, dipol ordering and ferroelectric-type phase transition with a critical dynamic central peak in K_1-xLi_xTaO_3 doped by strong soft dipole defects are discussed.
Permanent Link: http://hdl.handle.net/11104/0031205
Number of the records: 1