The strain-induced transitions of the piezoelectric, pyroelectric, and electrocaloric properties of the CuInP2S6 films

Anna N. Morozovska; Eugene A. Eliseev; Lesya P. Yurchenko; Valentyn V. Laguta; Yongtao Liu; Sergei V. Kalinin; Andrei L. Kholkin; Yulian M. Vysochanskii

doi:10.1063/5.0178854

The strain-induced transitions of the piezoelectric, pyroelectric, and electrocaloric properties of the CuInP₂S₆ films

Anna N. Morozovska, Eugene A. Eliseev, Lesya P. Yurchenko, Valentyn V. Laguta, Yongtao Liu, Sergei V. Kalinin, Andrei L. Kholkin, Yulian M. Vysochanskii

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Abstract

Low-dimensional ferroelectrics, ferrielectrics, and antiferroelectrics are of urgent scientific interest due to their unusual polar, piezoelectric, electrocaloric, and pyroelectric properties. The strain engineering and strain control of the ferroelectric properties of layered two-dimensional van der Waals materials, such as CuInP₂(S,Se)₆ monolayers, thin films, and nanoflakes, are of fundamental interest and especially promising for their advanced applications in nanoscale nonvolatile memories, energy conversion and storage, nano-coolers, and sensors. Here, we study the polar, piezoelectric, electrocaloric, and pyroelectric properties of thin strained films of a ferrielectric CuInP₂S₆ covered by semiconducting electrodes and reveal an unusually strong effect of a mismatch strain on these properties. In particular, the sign of the mismatch strain and its magnitude determine the complicated behavior of piezoelectric, electrocaloric, and pyroelectric responses. The strain effect on these properties is opposite, i.e., “anomalous,” in comparison with many other ferroelectric films, for which the out-of-plane remanent polarization, piezoelectric, electrocaloric, and pyroelectric responses increase strongly for tensile strains and decrease or vanish for compressive strains.

Original language	English
Article number	125306
Journal	AIP Advances
Volume	13
Issue number	12
DOIs	https://doi.org/10.1063/5.0178854
State	Published - Dec 1 2023

Funding

A.N.M. and A.L.K. acknowledge support from the Horizon Europe Framework Program (HORIZON-TMA-MSCA-SE), Project No. 101131229, Piezoelectricity in 2D-materials: materials, modeling, and applications (PIEZO 2D). A.N.M. also acknowledges funding from the National Academy of Sciences of Ukraine (Grant N 4.8/23-Π “Innovative materials and systems with magnetic and/or electrodipole ordering for the needs of using spintronics and nanoelectronics in strategically important issues of new technology”). A.N.M., E.A.E., and L.P.Y. acknowledge support from the National Academy of Sciences of Ukraine. The research was partly supported by the Czech Science Foundation under Project No. 23-05578S (V.L.). S.V.K. was supported by the Center for 3D Ferroelectric Microelectronics (3DFeM), an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences, under Award No. DE-SC0021118. This work (A.L.K.) was developed within the scope of project CICECO-Aveiro Institute of Materials (Nos. UIDB/50011/2020 and UIDP/50011/2020), financed by national funds through the FCT-Foundation for Science and Technology (Portugal).

Funders	Funder number
CICECO-Aveiro Institute of Materials	UIDP/50011/2020, UIDB/50011/2020
center for 3D Ferroelectric Microelectronics
HORIZON-TMA-MSCA-SE	101131229
U.S. Department of Energy
Office of Science
Basic Energy Sciences	DE-SC0021118
HORIZON EUROPE Framework Programme
Grantová Agentura České Republiky	23-05578S
Fundação para a Ciência e a Tecnologia
National Academy of Sciences of Ukraine	N 4.8/23-Π

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title = "The strain-induced transitions of the piezoelectric, pyroelectric, and electrocaloric properties of the CuInP2S6 films",

abstract = "Low-dimensional ferroelectrics, ferrielectrics, and antiferroelectrics are of urgent scientific interest due to their unusual polar, piezoelectric, electrocaloric, and pyroelectric properties. The strain engineering and strain control of the ferroelectric properties of layered two-dimensional van der Waals materials, such as CuInP2(S,Se)6 monolayers, thin films, and nanoflakes, are of fundamental interest and especially promising for their advanced applications in nanoscale nonvolatile memories, energy conversion and storage, nano-coolers, and sensors. Here, we study the polar, piezoelectric, electrocaloric, and pyroelectric properties of thin strained films of a ferrielectric CuInP2S6 covered by semiconducting electrodes and reveal an unusually strong effect of a mismatch strain on these properties. In particular, the sign of the mismatch strain and its magnitude determine the complicated behavior of piezoelectric, electrocaloric, and pyroelectric responses. The strain effect on these properties is opposite, i.e., “anomalous,” in comparison with many other ferroelectric films, for which the out-of-plane remanent polarization, piezoelectric, electrocaloric, and pyroelectric responses increase strongly for tensile strains and decrease or vanish for compressive strains.",

author = "Morozovska, {Anna N.} and Eliseev, {Eugene A.} and Yurchenko, {Lesya P.} and Laguta, {Valentyn V.} and Yongtao Liu and Kalinin, {Sergei V.} and Kholkin, {Andrei L.} and Vysochanskii, {Yulian M.}",

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AU - Laguta, Valentyn V.

AU - Liu, Yongtao

AU - Kalinin, Sergei V.

AU - Kholkin, Andrei L.

AU - Vysochanskii, Yulian M.

PY - 2023/12/1

Y1 - 2023/12/1

N2 - Low-dimensional ferroelectrics, ferrielectrics, and antiferroelectrics are of urgent scientific interest due to their unusual polar, piezoelectric, electrocaloric, and pyroelectric properties. The strain engineering and strain control of the ferroelectric properties of layered two-dimensional van der Waals materials, such as CuInP2(S,Se)6 monolayers, thin films, and nanoflakes, are of fundamental interest and especially promising for their advanced applications in nanoscale nonvolatile memories, energy conversion and storage, nano-coolers, and sensors. Here, we study the polar, piezoelectric, electrocaloric, and pyroelectric properties of thin strained films of a ferrielectric CuInP2S6 covered by semiconducting electrodes and reveal an unusually strong effect of a mismatch strain on these properties. In particular, the sign of the mismatch strain and its magnitude determine the complicated behavior of piezoelectric, electrocaloric, and pyroelectric responses. The strain effect on these properties is opposite, i.e., “anomalous,” in comparison with many other ferroelectric films, for which the out-of-plane remanent polarization, piezoelectric, electrocaloric, and pyroelectric responses increase strongly for tensile strains and decrease or vanish for compressive strains.

AB - Low-dimensional ferroelectrics, ferrielectrics, and antiferroelectrics are of urgent scientific interest due to their unusual polar, piezoelectric, electrocaloric, and pyroelectric properties. The strain engineering and strain control of the ferroelectric properties of layered two-dimensional van der Waals materials, such as CuInP2(S,Se)6 monolayers, thin films, and nanoflakes, are of fundamental interest and especially promising for their advanced applications in nanoscale nonvolatile memories, energy conversion and storage, nano-coolers, and sensors. Here, we study the polar, piezoelectric, electrocaloric, and pyroelectric properties of thin strained films of a ferrielectric CuInP2S6 covered by semiconducting electrodes and reveal an unusually strong effect of a mismatch strain on these properties. In particular, the sign of the mismatch strain and its magnitude determine the complicated behavior of piezoelectric, electrocaloric, and pyroelectric responses. The strain effect on these properties is opposite, i.e., “anomalous,” in comparison with many other ferroelectric films, for which the out-of-plane remanent polarization, piezoelectric, electrocaloric, and pyroelectric responses increase strongly for tensile strains and decrease or vanish for compressive strains.

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The strain-induced transitions of the piezoelectric, pyroelectric, and electrocaloric properties of the CuInP₂S₆ films

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