Zobrazeno 1 - 10
of 230
pro vyhledávání: '"Andris Sternberg"'
Autor:
Ojars Martins Eberlins, Eriks Birks, Maija Antonova, Maris Kundzins, Maris Livins, Andris Sternberg
Publikováno v:
Crystals, Vol 12, Iss 2, p 134 (2022)
Recently, promising results were obtained in studies of the electrocaloric effect in thin films. Therefore, research into this effect at high applied electric field values in bulk ferroelectrics is an important task for those scoping out materials th
Externí odkaz:
https://doaj.org/article/61984aefcf5f442883520f455625ce55
Autor:
Liga Bikse, Marija Dunce, Eriks Birks, Karlis Kundzins, Otto Freimanis, Maris Livins, Jevgenijs Gabrusenoks, Andris Sternberg
Publikováno v:
Crystals, Vol 11, Iss 10, p 1266 (2021)
Thermal etching is a widely accepted surface treatment method for studying microstructure in Na0.5Bi0.5TiO3-based compositions. Surprisingly, besides the flat pattern of grains (suitable for evaluating ceramics’ microstructure), images illustrating
Externí odkaz:
https://doaj.org/article/19e6eb2f362041e78aa11c3f3fb28af5
Autor:
Marija Dunce, Eriks Birks, Maija Antonova, Liga Bikse, Karlis Kundzins, Otto Freimanis, Maris Livins, Sanija Dutkevica, Andris Sternberg
Publikováno v:
Journal of the American Ceramic Society. 105:3874-3884
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::890d216477004f26a1e7b7eaf4cbd622
https://doi.org/10.1111/jace.18395
https://doi.org/10.1111/jace.18395
Autor:
J. Banys, Andris Sternberg, L. Bikshe, Eriks Birks, Š. Svirskas, M. Dunce, A. Kežionis, A. Olšauskaitė
Publikováno v:
Ferroelectrics. 569:266-279
Presence of a frequency-independent maximum and a frequency-dependent shoulder in temperature-frequency dependence of dielectric permittivity are characteristic features of NBT-based solid solution...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e4d2b9f69617c33936f434cb0a1380a
https://doi.org/10.1080/00150193.2020.1822685
https://doi.org/10.1080/00150193.2020.1822685
Autor:
Andris Sternberg, M. Dunce, Edgars Nitiss, J. Grube, Maija Antonova, R. Ignatans, M. Kundzinsh, Eriks Birks, Anatolijs Sarakovskis
Publikováno v:
Ferroelectrics. 567:150-159
Photoluminescence and optical second harmonic generation in Er-doped 0.4Na0.5Bi0.5TiO3-(0.6-x)SrTiO3-xPbTiO3 solid solutions is studied. Earlier, it was shown that upon increasing of PbTiO3 concent...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be233f0c26b8ee14ac4e0792c6b5f281
https://doi.org/10.1080/00150193.2020.1791599
https://doi.org/10.1080/00150193.2020.1791599
Autor:
K. Konieczny, Piotr Czaja, Wojciech Piekarczyk, J. Suchanicz, Maija Antonova, Andris Sternberg, Dorota Sitko
Publikováno v:
Phase Transitions. 91:1044-1050
The study investigates the microstructure, thermal and mechanical properties of (1–x)BaTiO3–xCaTiO3 ((1–x)BT–xCT)) (x = 0.01, 0.04, 0.08) samples. The BT–CT system to be tested was formed as a soli...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a56553f91e41efe860e0a5ef41cd9d6f
https://doi.org/10.1080/01411594.2018.1509975
https://doi.org/10.1080/01411594.2018.1509975
Autor:
Anna Kalvane, A. V. Sopit, Andris Sternberg, K. Bormanis, Maija Antonova, A. I. Burkhanov, V. O. Semibratov
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 82:229-233
Properties of the dielectric response of (K0.5Na0.5)(Nb1 – xTa x )O3 + 0.5 mol % MnO2 (KNN-xTa) ferroelectric ceramics at temperatures including that of the structural phase transition (SPT) from the orthorhombic phase to tetragonal is studied and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81a6e20ff6a55084146b5c54fdd9078c
https://doi.org/10.3103/s106287381803005x
https://doi.org/10.3103/s106287381803005x
Publikováno v:
Ferroelectrics. 524:9-13
Lead-free (Na0.5Bi0.5)1-xSrxTiO3 ceramics (x = 0–0.04) were synthesized by a conventional mixed-oxide technique. The microstructure study showed a dense structure, in good agreement with that of ab...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b52a2bb973c8e0b3fde9269db6f20a2e
https://doi.org/10.1080/00150193.2018.1432771
https://doi.org/10.1080/00150193.2018.1432771
Autor:
Eriks Birks, Laura Eglite, Liga Bikse, Andris Sternberg, Sanija Dutkevica, M. Livins, M. Dunce, Maija Antonova, Otto Freimanis, Krisjanis Smits
Publikováno v:
Journal of Alloys and Compounds. 884:160955
Na0.5Bi0.5TiO3 (NBT)-based compositions are among the most promising lead-free ferroelectrics. Although studies of modification of NBT-based compositions’ properties are a hot topic, there has been very little attention paid to their characterizati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ae8fc2dbeb3b1f2e0bb8c1f3c2c27f8
https://doi.org/10.1016/j.jallcom.2021.160955
https://doi.org/10.1016/j.jallcom.2021.160955
Autor:
Andris Sternberg, M. M. Neradovskiy, V. Ya. Shur, Dmitry A. Kiselev, Andrei L. Kholkin, V. V. Fedorovykh, V. A. Shikhova, A. P. Turygin, E. A. Neradovskaya
Publikováno v:
Ferroelectrics. 509:19-26
Pb1-xLax(Zr0.65Ti0.35)1-x/4O3 (PLZT x/65/35) ceramics were studied by Piezoresponse Force Microscopy in order to understand the origin of domain structure as a function of La content. We show that the domain topology is mainly determined by the compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2013665c96568820617fca743d71cea
https://doi.org/10.1080/00150193.2017.1291385
https://doi.org/10.1080/00150193.2017.1291385