Quantum Oscillation in Excitonic Insulating Electron-Hole Bilayer
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866929299870711808 |
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| author | Shao, Yuelin Dai, Xi |
| author_facet | Shao, Yuelin Dai, Xi |
| contents | We study the quantum oscillations of inter-layer capacitance in an excitonic insulating electron-hole double layer with the Hartree Fock mean-field theory. Such oscillations could be simply understood from the physical picture ``exciton formed by electron/hole Landau levels'', where the direct gap between the electron-hole Landau levels will oscillate with exciton chemical potential and the inverse of the magnetic field. We also find that the excitonic order parameters can be destroyed by a strong magnetic field. At this time, the system becomes two independent quantum Hall liquids and the inter-layer capacitance oscillates to zero at zero temperature. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2401_01605 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum Oscillation in Excitonic Insulating Electron-Hole Bilayer Shao, Yuelin Dai, Xi Strongly Correlated Electrons Mesoscale and Nanoscale Physics Materials Science We study the quantum oscillations of inter-layer capacitance in an excitonic insulating electron-hole double layer with the Hartree Fock mean-field theory. Such oscillations could be simply understood from the physical picture ``exciton formed by electron/hole Landau levels'', where the direct gap between the electron-hole Landau levels will oscillate with exciton chemical potential and the inverse of the magnetic field. We also find that the excitonic order parameters can be destroyed by a strong magnetic field. At this time, the system becomes two independent quantum Hall liquids and the inter-layer capacitance oscillates to zero at zero temperature. |
| title | Quantum Oscillation in Excitonic Insulating Electron-Hole Bilayer |
| topic | Strongly Correlated Electrons Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2401.01605 |