Effects of Mn doping on dielectric properties of ferroelectric relaxor PLZT ceramics
| dc.contributor.author | Dimza, Vilnis | |
| dc.contributor.author | Popov, Anatoli I. | |
| dc.contributor.author | Lāce, Lelde | |
| dc.contributor.author | Kundzinš, Māris A. | |
| dc.contributor.author | Kundziņš, Kārlis | |
| dc.contributor.author | Antonova, Maija K. | |
| dc.contributor.author | Livinš, Maris G. | |
| dc.date.accessioned | 2020-10-01T13:13:25Z | |
| dc.date.accessioned | 2025-07-22T11:21:08Z | |
| dc.date.available | 2020-10-01T13:13:25Z | |
| dc.date.issued | 2017 | |
| dc.description | This work has been supported by Latvian state research program IMIS2 . | en_US |
| dc.description.abstract | A series of PLZT (8/65/35) ceramics with different Mn2O3 concentration (0.01, 0.1, 0.3, 1.0, and 3.0% by weight) have been synthesized to figure out its influence on their dielectric properties. The complex dielectric permittivity ε* = ε′−iε″ as function of frequency and temperature as well as polarisation loops P(E) have been studied as a function of Mn concentration. It was found that Mn doping is restrained the Vogel-Fulcher law held in the unmodified PLZT compound producing essential change of the dependence of ε* on temperature and frequency and of the shape of P(E). The observed effects are explained by gradual involvement of Debye and Maxwell-Wagner polarisation mechanisms in relaxation processes with the growth of the concentration of Mn concentration admixture. A decrease of the ε'(T) maximum value and shift of the maximum to higher temperatures is observed. The observed effects are attributed to impacts of Mn2+ and Mn3+ ions: formation of oxygen vacancies paired with Mn2+ as dipoles and Jahn-Teller distortion prompted by Mn3+ ions. | en_US |
| dc.description.sponsorship | IMIS2; Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART² | en_US |
| dc.identifier.doi | 10.1016/j.cap.2016.11.010 | |
| dc.identifier.issn | 1567-1739 | |
| dc.identifier.uri | https://dspace.lu.lv/handle/7/52544 | |
| dc.language.iso | eng | en_US |
| dc.publisher | Elsevier B.V. | en_US |
| dc.relation | info:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART² | en_US |
| dc.relation.ispartofseries | Current Applied Physics;17 (2) | |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | Research Subject Categories::NATURAL SCIENCES:Physics | en_US |
| dc.subject | Dielectric properties | en_US |
| dc.subject | Ferroelectrics | en_US |
| dc.subject | Impurities in perovskites | en_US |
| dc.subject | Mn impurity | en_US |
| dc.subject | PLZT | en_US |
| dc.subject | Point defects | en_US |
| dc.title | Effects of Mn doping on dielectric properties of ferroelectric relaxor PLZT ceramics | en_US |
| dc.type | info:eu-repo/semantics/article | en_US |