Dielectric relaxation in SrTiO.sub.3./sub.-based solid solutions with heterovalent substitutions

0486173 - FZÚ 2018 RIV GB eng J - Článek v odborném periodiku
Markovin, P.A. - Lemanov, V. V. - Guzhva, M.E. - Trepakov, Vladimír
Dielectric relaxation in SrTiO₃-based solid solutions with heterovalent substitutions.
Ferroelectrics. Roč. 469, č. 1 (2014), s. 43-49. ISSN 0015-0193. E-ISSN 1563-5112
Institucionální podpora: RVO:68378271
Klíčová slova: quantum paraelectric * dielectric relaxation * local charge compensation
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 0.469, rok: 2014

Temperature dependences of the dielectric permittivity and thermal treatment effect have been studied for (1-x)SrTiO3-(x)KTaO3 and (1-x)SrTiO3-(x)KNbO3 (0 <= x <= 0.2) solid solutions. For low concentrations x, strong dielectric relaxation was found in the temperature range of 150-250 K. A relaxing centers model based on the local charge compensation of heterovalent impurities is discussed.
Trvalý link: http://hdl.handle.net/11104/0281027