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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2506.19685 |
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| _version_ | 1866909659127873536 |
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| author | Neto, J. F. de Oliveira Guimarães, F. M. A. Dantas, Davi S. Peeters, F. M. Milošević, M. V. Chaves, A. |
| author_facet | Neto, J. F. de Oliveira Guimarães, F. M. A. Dantas, Davi S. Peeters, F. M. Milošević, M. V. Chaves, A. |
| contents | Within the Gross-Pitaevskii framework, we reveal the emergence of a crystallized phase of an exciton condensate in an atomically-thin anisotropic semiconductor, where screening of exciton-exciton interactions is introduced by a proximal doped graphene layer. While such screened interactions are expected to yield a hexagonal crystal lattice in the excitonic condensate in isotropic semiconductor quantum wells [see e.g. Phys. Rev. Lett. \textbf{108}, 060401 (2012)], here we show that for atomically thin semiconductors with strong electronic anisotropy, such as few-layer black phosphorus, the crystallized exciton phase acquires a parallel stripe structure - unanticipated to date. The optimal conditions for the emergence of this phase, as well as for its coexistence with excitonic superfluidity in a striped supersolid phase, are identified. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_19685 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Striped excitonic (super)solid in anisotropic semiconductors with screened exciton interactions Neto, J. F. de Oliveira Guimarães, F. M. A. Dantas, Davi S. Peeters, F. M. Milošević, M. V. Chaves, A. Mesoscale and Nanoscale Physics Within the Gross-Pitaevskii framework, we reveal the emergence of a crystallized phase of an exciton condensate in an atomically-thin anisotropic semiconductor, where screening of exciton-exciton interactions is introduced by a proximal doped graphene layer. While such screened interactions are expected to yield a hexagonal crystal lattice in the excitonic condensate in isotropic semiconductor quantum wells [see e.g. Phys. Rev. Lett. \textbf{108}, 060401 (2012)], here we show that for atomically thin semiconductors with strong electronic anisotropy, such as few-layer black phosphorus, the crystallized exciton phase acquires a parallel stripe structure - unanticipated to date. The optimal conditions for the emergence of this phase, as well as for its coexistence with excitonic superfluidity in a striped supersolid phase, are identified. |
| title | Striped excitonic (super)solid in anisotropic semiconductors with screened exciton interactions |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2506.19685 |