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Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:2511.22400 (cond-mat)
[Submitted on 27 Nov 2025]

Title:Asymmetric quantum Hall effect and diminished $ν=0$ longitudinal resistance in graphene/InSe heterostructures

Authors:Wenxue He, Shijin Li, Jinhao Cheng, Yingpeng Zhang, Kaixuan Fan, Jiabo Liu, Shuaishuai Ding, Wenping Hu, Fan Yang, Chen Wang, Qing-Feng Sun, Hechen Ren
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Abstract: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.
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:2511.22400 [cond-mat.mes-hall]
  (or arXiv:2511.22400v1 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.2511.22400

Submission history

From: Wenxue He [view email]
[v1] Thu, 27 Nov 2025 12:21:18 UTC (4,679 KB)
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