The exciton-polariton properties of hexagonal BN based microcavity and their potential applications in BEC and superconductivity
| Autor: | Yang, Huaiyuan, Wang, Xinqiang, Li, Xin-Zheng |
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| Rok vydání: | 2021 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.104.205307 |
| Popis: | Microcavity exciton-polaritons are two-dimensional bosonic quasiparticles composed by excitons and photons. Using model Hamiltonian with parameters generated from ab initio density-functional theory and Bathe-Salpeter Equation calculations, we investigate the exciton and the exciton-polariton properties of hexagnonal boron nitride (hBN) based microcavity. We show that hBN based microcavities, including monolayer and all-dielectric ones, are promising in optoelectronic applications. Room temperature exciton-polariton Bose-Einstein Condensation can be achieved because of the large oscillating strength and binding energy of the exciton, and the strong interaction between the exciton-polaritons and the longitudinal optical phonons. Based on this BEC state, exciton-polariton mediated superconducting device can also be fabricated at such moderate temperatures using the microcavity structure proposed by Laussy et al. Comment: 12 pages, 7 figures |
| Databáze: | arXiv |
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