Research ArticleCONDENSED MATTER PHYSICS

Strain-driven autonomous control of cation distribution for artificial ferroelectrics

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Science Advances  28 Apr 2021:
Vol. 7, no. 18, eabd7394
DOI: 10.1126/sciadv.abd7394

Abstract

In past few decades, there have been substantial advances in theoretical material design and experimental synthesis, which play a key role in the steep ascent of developing functional materials with unprecedented properties useful for next-generation technologies. However, the ultimate goal of synthesis science, i.e., how to locate atoms in a specific position of matter, has not been achieved. Here, we demonstrate a unique way to inject elements in a specific crystallographic position in a composite material by strain engineering. While the use of strain so far has been limited for only mechanical deformation of structures or creation of elemental defects, we show another powerful way of using strain to autonomously control the atomic position for the synthesis of new materials and structures. We believe that our synthesis methodology can be applied to wide ranges of systems, thereby providing a new route to functional materials.

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