Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junction
We investigate the Andreev reflection across an 8-Pmmn borophene-based superconducting junction irradiated by the linearly polarized off-resonant light with the polarization along x and y directions, respectively. In the regime of the interband conversion of electron–hole, Andreev retro-reflection h...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379721006306 |
| _version_ | 1818864739151773696 |
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| author | Yafang Xu Xingfei Zhou |
| author_facet | Yafang Xu Xingfei Zhou |
| author_sort | Yafang Xu |
| collection | DOAJ |
| description | We investigate the Andreev reflection across an 8-Pmmn borophene-based superconducting junction irradiated by the linearly polarized off-resonant light with the polarization along x and y directions, respectively. In the regime of the interband conversion of electron–hole, Andreev retro-reflection happens in both cases of the polarization along x and y directions except perpendicular direction of junction. In the regime of the intraband conversion of electron–hole, specular Andreev reflection happens regardless of the directions of polarization except perpendicular direction of junction. In both regimes of the conversion of electron–hole, the values of differential conductance are different in the different directions of junction and different directions of polarization, i.e., an anisotropic conductance is generated. In addition, the nonzero incident angle of the perfect Andreev reflection can be tuned by adjusting the directions of junction and polarization. All these properties of Andreev reflection arise from the light-modulated anisotropic band structure of borophene. |
| first_indexed | 2024-12-19T10:36:26Z |
| format | Article |
| id | doaj.art-bba0cbbbf8a643258e490d18210c796a |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-19T10:36:26Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-bba0cbbbf8a643258e490d18210c796a2022-12-21T20:25:35ZengElsevierResults in Physics2211-37972021-08-0127104523Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junctionYafang Xu0Xingfei Zhou1College of Physics Science and Technology, Yangzhou University, Yangzhou, 225002, ChinaNew Energy Technology Engineering Laboratory of Jiangsu Province, School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China; Corresponding author.We investigate the Andreev reflection across an 8-Pmmn borophene-based superconducting junction irradiated by the linearly polarized off-resonant light with the polarization along x and y directions, respectively. In the regime of the interband conversion of electron–hole, Andreev retro-reflection happens in both cases of the polarization along x and y directions except perpendicular direction of junction. In the regime of the intraband conversion of electron–hole, specular Andreev reflection happens regardless of the directions of polarization except perpendicular direction of junction. In both regimes of the conversion of electron–hole, the values of differential conductance are different in the different directions of junction and different directions of polarization, i.e., an anisotropic conductance is generated. In addition, the nonzero incident angle of the perfect Andreev reflection can be tuned by adjusting the directions of junction and polarization. All these properties of Andreev reflection arise from the light-modulated anisotropic band structure of borophene.http://www.sciencedirect.com/science/article/pii/S22113797210063068-Pmmn boropheneLinearly polarized off-resonant lightSuperconducting junctionAnisotropic Andreev reflection |
| spellingShingle | Yafang Xu Xingfei Zhou Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junction Results in Physics 8-Pmmn borophene Linearly polarized off-resonant light Superconducting junction Anisotropic Andreev reflection |
| title | Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junction |
| title_full | Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junction |
| title_fullStr | Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junction |
| title_full_unstemmed | Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junction |
| title_short | Light-modulated anisotropic Andreev reflection across an 8-Pmmn borophene-based superconducting junction |
| title_sort | light modulated anisotropic andreev reflection across an 8 pmmn borophene based superconducting junction |
| topic | 8-Pmmn borophene Linearly polarized off-resonant light Superconducting junction Anisotropic Andreev reflection |
| url | http://www.sciencedirect.com/science/article/pii/S2211379721006306 |
| work_keys_str_mv | AT yafangxu lightmodulatedanisotropicandreevreflectionacrossan8pmmnborophenebasedsuperconductingjunction AT xingfeizhou lightmodulatedanisotropicandreevreflectionacrossan8pmmnborophenebasedsuperconductingjunction |