Creating a three-dimensional intrinsic electric dipole on rotated CrI3 bilayers
ORAL
Abstract
New multiferroic platforms by sliding or rotation are being explored in two-dimensional (2D) materials [1,2,3]. Antiferromagnetically-coupled CrI3 bilayers are one of the most studied magneto-electric multiferroic 2D materials [4]. Without considering magnetism, those bilayers possess a crystalline point of inversion, which can only be removed by antiparallel spin configuration between their two monolayers [4]. However, relative rotations between layers break the crystalline point of inversion, resulting in an inherent electric dipole moment P. Magnetoelectric couplings can be enhanced this way on a two-dimensional bilayer that is experimentally accessible [5].
References:
[1] Wu et al. ACS Nano, 11, 6382-6388, 2017.
[2] Marmolejo-Tejada et al. Nano Lett. 22, 19, 2022.
[3] Junyi Ji et al. Phys. Rev. Lett. 130, 146801, 2023.
[4] Sun et al. Nature 572, 497, 2019.
[5] Poudel et al. Phys. Rev. B 107, 195128, 2023.
References:
[1] Wu et al. ACS Nano, 11, 6382-6388, 2017.
[2] Marmolejo-Tejada et al. Nano Lett. 22, 19, 2022.
[3] Junyi Ji et al. Phys. Rev. Lett. 130, 146801, 2023.
[4] Sun et al. Nature 572, 497, 2019.
[5] Poudel et al. Phys. Rev. B 107, 195128, 2023.
* All authors acknowledge financial support from the MonArk NSF Quantum Foundry, supported by the National Science Foundation Q-AMASE-i program under NSF Award DMR-1906383.
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Publication: Phys. Rev. B 107, 195128, 2023.
Presenters
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Shiva P Poudel
University of Arkansas
Authors
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Shiva P Poudel
University of Arkansas
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Juan Marmolejo-Tejada
Montana State University
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Joseph E Roll
University of Texas at Austin, University of Arkansas
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Martin A Mosquera
Montana State University
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Salvador Barraza-Lopez
University of Arkansas