What is it about?

Composite is a multifunctional material demonstrating unique physical properties and consisting of different components, in our case it is ferromagnetic and ferroelectric phases. Here, we have shown for the first time that the nanocomposites can be easily obtained by the high-pressure torsion method and their magnetic and electric properties can be tuned under high-pressure using diamond anvils and a hydrostatic chamber.

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Why is it important?

From the scientific point of view, we have designed a novel ferroelectric/ferromagnetic nanocomposite based on the bismuth ferrite perovskite and manganese-zinc ferrospinel with the improved magnetic and electric properties using a high-pressure torsion method. A great increase in the residual polarization under 5 GPa has been detected. From the applied application point of view, the obtained multiferroic-like composite material can be used for the creation of ultra-high pressure control devices and in integrated circuits with low switching energy.

Perspectives

I am grateful to all co-authors who made a lot of contributions to publishing this paper. We were struggling with electric measurements under high-pressure using diamond anvils. Finally, we have obtained for the first time intriguing results. Special thanks to Prof. Aleksey Pashchenko for the great idea to obtain the composite and study its functional properties, as well as Master Song Chunrui for her perseverance and hard work. Useful collaboration has been established among Ukrainian, Chinese and German groups.

Nikita Liedienov
Jilin University

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This page is a summary of: Novel Multiferroic‐Like Nanocomposite with High Pressure‐Modulated Magnetic and Electric Properties, Advanced Functional Materials, May 2022, Wiley, DOI: 10.1002/adfm.202113022.
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