دورية أكاديمية
Unconventional Piezoelectricity of Two-Dimensional Materials Driven by the Hall Effect
| العنوان: | Unconventional Piezoelectricity of Two-Dimensional Materials Driven by the Hall Effect |
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| المؤلفون: | Yilimiranmu Rouzhahong, Chao Liang, Jian He, Xinyi Lin, Biao Wang, Huashan Li |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biophysics, Medicine, Cell Biology, Molecular Biology, Pharmacology, Biotechnology, Ecology, Space Science, Physical Sciences not elsewhere classified, Information Systems not elsewhere classified, statistical analyses justify, multidirectional energy conversion, charge polarization driven, quantum materials opens, named unconventional piezoelectricity, interpret unconventional piezoelectricity, dimensional materials driven, conventional polarized direction, hall effect piezoelectricity, unconventional piezoelectricity, dimensional materials, crystal materials, working modes, widely explored, valley splitting, spin splitting, polar directions, piezoelectric tensor, multifunctional sensing, mechanical response |
| الوصف: | Piezoelectricity has been widely explored for nanoelectromechanical applications, yet its working modes are mainly limited in polar directions. Here we discover the intrinsic electro-mechanical response in crystal materials that is transverse to the conventional polarized direction, which is named unconventional piezoelectricity. A Hall-like mechanism is proposed to interpret unconventional piezoelectricity as charge polarization driven by a built-in electric field for systems with asymmetric Berry curvature distributions. Density functional theory simulations and statistical analyses justify such a mechanism and confirm that unconventional piezoelectricity is a general property for various two-dimensional materials with spin splitting or valley splitting. An empirical formula is derived to connect the conventional and unconventional piezoelectricity. The extended understanding of the piezoelectric tensor in quantum materials opens an opportunity for applications in multidirectional energy conversion, broadband operation, and multifunctional sensing. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | https://figshare.com/articles/journal_contribution/Unconventional_Piezoelectricity_of_Two-Dimensional_Materials_Driven_by_the_Hall_Effect/25041861Test |
| DOI: | 10.1021/acs.nanolett.3c03709.s001 |
| الإتاحة: | https://doi.org/10.1021/acs.nanolett.3c03709.s001Test https://figshare.com/articles/journal_contribution/Unconventional_Piezoelectricity_of_Two-Dimensional_Materials_Driven_by_the_Hall_Effect/25041861Test |
| حقوق: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.B88F894D |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acs.nanolett.3c03709.s001 |
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