Yamamoto, Hajime ; Ogata, Takahiro ; Patel, Satyanarayan ; Koruza, Jurij ; Rödel, Jürgen ; Paul, Atanu ; Saha-Dasgupta, Tansuri ; Itoh, Mitsuru ; Azuma, Masaki (2018)
Na1/2Bi1/2VO3 and K1/2Bi1/2VO3: New Lead-Free Tetragonal
Perovskites with Moderate c/a Ratios.
In: Chemistry of Materials, 2018 (30)
doi: 10.1021/acs.chemmater.8b02379
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
New lead-free tetragonal perovskites Na1/2Bi1/2VO3 and K1/2Bi1/2VO3 were synthesized under high pressure (6 GPa) and high temperature (1473 K), based on the design of materials optimizing the lone pair effect of the A-site ion and utilizing the Jahn−Teller effect in the B-siteV4+. The magnitudes of the c/a ratio and spontaneous polarization, PS, were 1.085 and 108 μC/cm2, respectively (73 μC/cm2 by the point charge model), for Na1/2Bi1/2VO3 and 1.054 and 92 μC/cm2, respectively (56 μC/cm2 by the point charge model), for K1/2Bi1/2VO3, which are comparable to the well-known lead-based ferroelectric PbTiO3. This approach can guide the design of new lead-free ferroelectric and piezoelectric materials.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Yamamoto, Hajime ; Ogata, Takahiro ; Patel, Satyanarayan ; Koruza, Jurij ; Rödel, Jürgen ; Paul, Atanu ; Saha-Dasgupta, Tansuri ; Itoh, Mitsuru ; Azuma, Masaki |
| Art des Eintrags: | Bibliographie |
| Titel: | Na1/2Bi1/2VO3 and K1/2Bi1/2VO3: New Lead-Free Tetragonal Perovskites with Moderate c/a Ratios |
| Sprache: | Englisch |
| Publikationsjahr: | 17 Oktober 2018 |
| Verlag: | American Chemical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Chemistry of Materials |
| Jahrgang/Volume einer Zeitschrift: | 2018 |
| (Heft-)Nummer: | 30 |
| DOI: | 10.1021/acs.chemmater.8b02379 |
| Kurzbeschreibung (Abstract): | New lead-free tetragonal perovskites Na1/2Bi1/2VO3 and K1/2Bi1/2VO3 were synthesized under high pressure (6 GPa) and high temperature (1473 K), based on the design of materials optimizing the lone pair effect of the A-site ion and utilizing the Jahn−Teller effect in the B-siteV4+. The magnitudes of the c/a ratio and spontaneous polarization, PS, were 1.085 and 108 μC/cm2, respectively (73 μC/cm2 by the point charge model), for Na1/2Bi1/2VO3 and 1.054 and 92 μC/cm2, respectively (56 μC/cm2 by the point charge model), for K1/2Bi1/2VO3, which are comparable to the well-known lead-based ferroelectric PbTiO3. This approach can guide the design of new lead-free ferroelectric and piezoelectric materials. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 17 Okt 2018 10:39 |
| Letzte Änderung: | 17 Okt 2018 10:39 |
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