Electron and light hyperbolicity correlation in α-CaGe_{2}
Hyperbolic materials, characterized by their hyperbolic dispersion relations of waves, have attracted significant attention due to their distinct equifrequency contours. This study establishes a correlation between electron hyperbolicity and light hyperbolicity, unveiling fascinating scenarios resul...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2025-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.013023 |
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| _version_ | 1841555963555872768 |
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| author | Han Gao Xuejin Zhang Chao Ding Mingzheng Wang Juan Wang Bo Yang Mingwen Zhao |
| author_facet | Han Gao Xuejin Zhang Chao Ding Mingzheng Wang Juan Wang Bo Yang Mingwen Zhao |
| author_sort | Han Gao |
| collection | DOAJ |
| description | Hyperbolic materials, characterized by their hyperbolic dispersion relations of waves, have attracted significant attention due to their distinct equifrequency contours. This study establishes a correlation between electron hyperbolicity and light hyperbolicity, unveiling fascinating scenarios resulting from their interplay. The transition of electron hyperbolicity from type-I to type-II, induced by varying the chemical potential of electrons, also triggers a similar transition in light hyperbolicity. Through first-principles calculations, α-CaGe_{2} is identified as a promising material for achieving this transition. The tunable optical responses in α-CaGe_{2} under different doping conditions allow for the creation of heterostructures, resulting in the emergence of unique optical phenomena such as negative refraction and negative reflection. The distinctive electronic states proposed in this study not only pave the way for further exploration of hyperbolic materials but also lay the groundwork for designing innovative optoelectronic devices that expand the functional possibilities of these intriguing materials. |
| format | Article |
| id | doaj-art-34b5386e47e94a9bb50ca59e0e97b8a0 |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-34b5386e47e94a9bb50ca59e0e97b8a02025-01-07T15:03:15ZengAmerican Physical SocietyPhysical Review Research2643-15642025-01-017101302310.1103/PhysRevResearch.7.013023Electron and light hyperbolicity correlation in α-CaGe_{2}Han GaoXuejin ZhangChao DingMingzheng WangJuan WangBo YangMingwen ZhaoHyperbolic materials, characterized by their hyperbolic dispersion relations of waves, have attracted significant attention due to their distinct equifrequency contours. This study establishes a correlation between electron hyperbolicity and light hyperbolicity, unveiling fascinating scenarios resulting from their interplay. The transition of electron hyperbolicity from type-I to type-II, induced by varying the chemical potential of electrons, also triggers a similar transition in light hyperbolicity. Through first-principles calculations, α-CaGe_{2} is identified as a promising material for achieving this transition. The tunable optical responses in α-CaGe_{2} under different doping conditions allow for the creation of heterostructures, resulting in the emergence of unique optical phenomena such as negative refraction and negative reflection. The distinctive electronic states proposed in this study not only pave the way for further exploration of hyperbolic materials but also lay the groundwork for designing innovative optoelectronic devices that expand the functional possibilities of these intriguing materials.http://doi.org/10.1103/PhysRevResearch.7.013023 |
| spellingShingle | Han Gao Xuejin Zhang Chao Ding Mingzheng Wang Juan Wang Bo Yang Mingwen Zhao Electron and light hyperbolicity correlation in α-CaGe_{2} Physical Review Research |
| title | Electron and light hyperbolicity correlation in α-CaGe_{2} |
| title_full | Electron and light hyperbolicity correlation in α-CaGe_{2} |
| title_fullStr | Electron and light hyperbolicity correlation in α-CaGe_{2} |
| title_full_unstemmed | Electron and light hyperbolicity correlation in α-CaGe_{2} |
| title_short | Electron and light hyperbolicity correlation in α-CaGe_{2} |
| title_sort | electron and light hyperbolicity correlation in α cage 2 |
| url | http://doi.org/10.1103/PhysRevResearch.7.013023 |
| work_keys_str_mv | AT hangao electronandlighthyperbolicitycorrelationinacage2 AT xuejinzhang electronandlighthyperbolicitycorrelationinacage2 AT chaoding electronandlighthyperbolicitycorrelationinacage2 AT mingzhengwang electronandlighthyperbolicitycorrelationinacage2 AT juanwang electronandlighthyperbolicitycorrelationinacage2 AT boyang electronandlighthyperbolicitycorrelationinacage2 AT mingwenzhao electronandlighthyperbolicitycorrelationinacage2 |