| Title |
Origins of the large piezoelectric response of samarium-doped lead magnesium niobate–lead titanate ceramics / |
| Authors |
Arzenšek, Matija ; Toš, Urh ; Drnovšek, Silvo ; Dragomir, Mirela ; Uršič, Hana ; Otoničar, Mojca ; Jankauskas, Paulius ; Svirskas, Šarūnas ; Rojac, Tadej |
| DOI |
10.1126/sciadv.adp0895 |
| Full Text |
|
| Is Part of |
Science advances.. Washington : American Association for the Advancement of Science. 2024, vol. 10, iss. 26, p. [1-14].. eISSN 2375-2548 |
| Abstract [eng] |
The recent discovery of the large piezoelectric response of Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) ceramics induced by samarium doping has provided a substantially improved functionality to the group of lead-based relaxor-ferroelectric materials. Different mechanisms have been so far proposed for the large piezoelectricity; however, the explanations are contradictory and focused on a unified description. Here, we use nonlinear harmonic piezoelectric measurements combined with multiscale structural analysis to clarify the origins of the ultrahigh piezoelectric response of samarium-doped PMN-PT. Our methodological approach allowed us to separate the multiple piezoelectric contributions, revealing their quantitative role in the total response. The results show that the ultrahigh piezoelectricity cannot be attributed to a single mechanism but is rather a complex combination of different contributions originating from the multiple effects of samarium doping on the long- and short-range structure of PMN-PT. The study offers a baseline for future engineering of the key material parameters affecting the large piezoelectric response of relaxor-ferroelectric ceramics. |
| Published |
Washington : American Association for the Advancement of Science |
| Type |
Journal article |
| Language |
English |
| Publication date |
2024 |
| CC license |
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