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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/2511.22400 |
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| _version_ | 1866909930668163072 |
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| author | He, Wenxue Li, Shijin Cheng, Jinhao Zhang, Yingpeng Fan, Kaixuan Liu, Jiabo Ding, Shuaishuai Hu, Wenping Yang, Fan Wang, Chen Sun, Qing-Feng Ren, Hechen |
| author_facet | He, Wenxue Li, Shijin Cheng, Jinhao Zhang, Yingpeng Fan, Kaixuan Liu, Jiabo Ding, Shuaishuai Hu, Wenping Yang, Fan Wang, Chen Sun, Qing-Feng Ren, Hechen |
| contents | We investigate quantum transport in graphene/InSe heterostructures and find major asymmetries in the longitudinal resistance ($R_{xx}$) and vanishing $R_{xx}$ peaks at high magnetic fields, particularly at the charge-neutrality point. Our Landauer-Buttiker analysis and numerical simulations show that a monotonically varying density gradient combined with a full equilibration mechanism can explain these phenomena. Our results also suggest the presence of trivial long-range chiral edge current and offer a broadly applicable way to engineer transport properties in quantum Hall systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_22400 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Asymmetric quantum Hall effect and diminished $ν=0$ longitudinal resistance in graphene/InSe heterostructures He, Wenxue Li, Shijin Cheng, Jinhao Zhang, Yingpeng Fan, Kaixuan Liu, Jiabo Ding, Shuaishuai Hu, Wenping Yang, Fan Wang, Chen Sun, Qing-Feng Ren, Hechen Mesoscale and Nanoscale Physics We investigate quantum transport in graphene/InSe heterostructures and find major asymmetries in the longitudinal resistance ($R_{xx}$) and vanishing $R_{xx}$ peaks at high magnetic fields, particularly at the charge-neutrality point. Our Landauer-Buttiker analysis and numerical simulations show that a monotonically varying density gradient combined with a full equilibration mechanism can explain these phenomena. Our results also suggest the presence of trivial long-range chiral edge current and offer a broadly applicable way to engineer transport properties in quantum Hall systems. |
| title | Asymmetric quantum Hall effect and diminished $ν=0$ longitudinal resistance in graphene/InSe heterostructures |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2511.22400 |