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Description: Two-dimensional (2D) van der Waals ferroelectrics provide an unprecedented architectural freedom for the creation of artificial multiferroics and nonvolatile electronic devices based on vertical an...
keywords: tin selenide,monolayer,2D ferroelectric,scanning tunneling microscopy,molecular beam epitaxy
citation_journal_title: Nano Letters
dc.Title: Microscopic Manipulation of Ferroelectric Domains in SnSe Monolayers at Room Temperature
dc.Identifier: 10.1021/acs.nanolett.0c02357
title: Microscopic Manipulation of Ferroelectric Domains in SnSe Monolayers at Room Temperature | Nano Letters
og:description: Two-dimensional (2D) van der Waals ferroelectrics provide an unprecedented architectural freedom for the creation of artificial multiferroics and nonvolatile electronic devices based on vertical and coplanar heterojunctions of 2D ferroic materials. Nevertheless, controlled microscopic manipulation of ferroelectric domains is still rare in monolayer-thick 2D ferroelectrics with in-plane polarization. Here we report the discovery of robust ferroelectricity with a critical temperature close to 400 K in SnSe monolayer plates grown on graphene and the demonstration of controlled room-temperature ferroelectric domain manipulation by applying appropriate bias voltage pulses to the tip of a scanning tunneling microscope (STM). This study shows that STM is a powerful tool for detecting and manipulating the microscopic domain structures in 2D ferroelectric monolayers, which are difficult for conventional approaches such as piezoresponse force microscopy, thus facilitating the hunt for other 2D ferroelectric monolayers with in-plane polarization with important technological applications.
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dc.Publisher: American Chemical Society
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dc.Rights: Copyright © 2020 American Chemical Society
dc:title: Microscopic Manipulation of Ferroelectric Domains in SnSe Monolayers at Room Temperature | Nano Letters
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dc.Date: August 18, 2020
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dc.Subject: tin selenide; monolayer; 2D ferroelectric; scanning tunneling microscopy; molecular beam epitaxy
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twitter:title: Microscopic Manipulation of Ferroelectric Domains in SnSe Monolayers at Room Temperature
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og:title: Microscopic Manipulation of Ferroelectric Domains in SnSe Monolayers at Room Temperature
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dc.Language: en
dc.Description: Two-dimensional (2D) van der Waals ferroelectrics provide an unprecedented architectural freedom for the creation of artificial multiferroics and nonvolatile electronic devices based on vertical an...
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twitter:description: Two-dimensional (2D) van der Waals ferroelectrics provide an unprecedented architectural freedom for the creation of artificial multiferroics and nonvolatile electronic devices based on vertical and coplanar heterojunctions of 2D ferroic materials. Nevertheless, controlled microscopic manipulation of ferroelectric domains is still rare in monolayer-thick 2D ferroelectrics with in-plane polarization. Here we report the discovery of robust ferroelectricity with a critical temperature close to 400 K in SnSe monolayer plates grown on graphene and the demonstration of controlled room-temperature ferroelectric domain manipulation by applying appropriate bias voltage pulses to the tip of a scanning tunneling microscope (STM). This study shows that STM is a powerful tool for detecting and manipulating the microscopic domain structures in 2D ferroelectric monolayers, which are difficult for conventional approaches such as piezoresponse force microscopy, thus facilitating the hunt for other 2D ferroelectric monolayers with in-plane polarization with important technological applications.
dc.Creator: Kai  Chang
dc.identifier: 10.1021/acs.nanolett.0c02357
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og:url: https://pubs.acs.org/doi/full/10.1021/acs.nanolett.0c02357
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