Room Temperature Ferroelectricity and Electrically Tunable Berry Curvature Dipole in III-V Monolayers
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866917682826182656 |
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| author | Naseer, Ateeb Priydarshi, Achintya Ghosh, Pritam Ahammed, Raihan Chauhan, Yogesh Singh Bhowmick, Somnath Agarwal, Amit |
| author_facet | Naseer, Ateeb Priydarshi, Achintya Ghosh, Pritam Ahammed, Raihan Chauhan, Yogesh Singh Bhowmick, Somnath Agarwal, Amit |
| contents | Two-dimensional ferroelectric monolayers are promising candidates for compact memory devices and flexible electronics. Here, through first-principles calculations, we predict room temperature ferroelectricity in AB-type monolayers comprising group III (A = Al, In, Ga) and group V (B = As, P, Sb) elements. We show that their spontaneous polarization, oriented out-of-plane, ranges from 9.48 to 13.96 pC/m, outperforming most known 2D ferroelectric. We demonstrate electric field tunable Berry curvature dipole and nonlinear Hall current in these monolayers. Additionally, we highlight their applicability in next-generation memory devices by forming efficient ferroelectric tunnel junctions, especially in InP, which supports high tunneling electroresistance. Our findings motivate further exploration of these monolayers for studying the interplay between Berry curvature and ferroelectricity and for integrating these ferroelectric monolayers in next-generation electronic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_18905 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Room Temperature Ferroelectricity and Electrically Tunable Berry Curvature Dipole in III-V Monolayers Naseer, Ateeb Priydarshi, Achintya Ghosh, Pritam Ahammed, Raihan Chauhan, Yogesh Singh Bhowmick, Somnath Agarwal, Amit Materials Science Two-dimensional ferroelectric monolayers are promising candidates for compact memory devices and flexible electronics. Here, through first-principles calculations, we predict room temperature ferroelectricity in AB-type monolayers comprising group III (A = Al, In, Ga) and group V (B = As, P, Sb) elements. We show that their spontaneous polarization, oriented out-of-plane, ranges from 9.48 to 13.96 pC/m, outperforming most known 2D ferroelectric. We demonstrate electric field tunable Berry curvature dipole and nonlinear Hall current in these monolayers. Additionally, we highlight their applicability in next-generation memory devices by forming efficient ferroelectric tunnel junctions, especially in InP, which supports high tunneling electroresistance. Our findings motivate further exploration of these monolayers for studying the interplay between Berry curvature and ferroelectricity and for integrating these ferroelectric monolayers in next-generation electronic devices. |
| title | Room Temperature Ferroelectricity and Electrically Tunable Berry Curvature Dipole in III-V Monolayers |
| topic | Materials Science |
| url | https://arxiv.org/abs/2405.18905 |