Pseudo Electric Field and Pumping Valley Current in Graphene Nano-bubbles
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866909864210464768 |
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| author | Hadadi, Naif Belayadi, Adel AlRabiah, Ahmed Ly, Ousmane Akosa, Collins Ashu Vogl, Michael Bahlouli, Hocine Manchon, Aurelien Abbout, Adel |
| author_facet | Hadadi, Naif Belayadi, Adel AlRabiah, Ahmed Ly, Ousmane Akosa, Collins Ashu Vogl, Michael Bahlouli, Hocine Manchon, Aurelien Abbout, Adel |
| contents | The extremely high pseudo-magnetic field emerging in strained graphene suggests that an oscillating nano-deformation will induce a very high current even without electric bias. In this paper, we demonstrate the sub-terahertz (THz) dynamics of a valley-current and the corresponding charge pumping with a periodically excited nano-bubble. We discuss the amplitude of the pseudo-electric field and investigate the dependence of the pumped valley current on the different parameters of the system. Finally, we report the signature of extra-harmonics generation in the valley current that might lead to potential modern devices development operating in the nonlinear regime |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_11904 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Pseudo Electric Field and Pumping Valley Current in Graphene Nano-bubbles Hadadi, Naif Belayadi, Adel AlRabiah, Ahmed Ly, Ousmane Akosa, Collins Ashu Vogl, Michael Bahlouli, Hocine Manchon, Aurelien Abbout, Adel Mesoscale and Nanoscale Physics The extremely high pseudo-magnetic field emerging in strained graphene suggests that an oscillating nano-deformation will induce a very high current even without electric bias. In this paper, we demonstrate the sub-terahertz (THz) dynamics of a valley-current and the corresponding charge pumping with a periodically excited nano-bubble. We discuss the amplitude of the pseudo-electric field and investigate the dependence of the pumped valley current on the different parameters of the system. Finally, we report the signature of extra-harmonics generation in the valley current that might lead to potential modern devices development operating in the nonlinear regime |
| title | Pseudo Electric Field and Pumping Valley Current in Graphene Nano-bubbles |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2310.11904 |