Research paperTheoreticalComputational KmcLarge positive magnetoconductance in carbon nanoscrollsYu-Jie Zhong, Jia-Cheng Li, Xuan-Fu Huang, Ying-Je Lee et al.arXiv·2025·10.1021/acs.nanolett.4c03694·arXiv:2408.03518AbstractWe theoretically demonstrate that carbon nanoscrolls – spirally wrapped graphene layers with open endpoints – can be characterized by a large positive magnetoconductance. We show that when a carbon nanoscroll is subject to an axial magnetic field of several Tesla, the ballistic conductance at low carrier densities of the nanoscroll has an increase of about 200%. Importantly, we find that this positive magnetoconductance is not only preserved in an imperfect nanoscroll (with disorder or mild inter-turn misalignment) but can even be enhanced in the presence of on-site disorder. We prove that the positive magnetoconductance comes about the emergence of magnetic field-induced zero energy modes, specific of rolled-up geometries. Our results establish curved graphene systems as a new material platform displaying sizable magnetoresistive phenomena.Read more
Ideal two-turn carbon nanoscroll used in ballistic transport calculations.3 propertiesSimulatedCStudied MaterialExpand
Two-turn carbon nanoscroll with on-site disorder / mild inter-turn misalignment used for transport robustness analysis.1 propertySimulatedCStudied MaterialExpand
AB-stacked bilayer graphene zigzag nanoribbon reference system.1 propertySimulatedCStudied MaterialExpand
Research paperTheoreticalComputational KmcLarge positive magnetoconductance in carbon nanoscrollsYu-Jie Zhong, Jia-Cheng Li, Xuan-Fu Huang, Ying-Je Lee et al.arXiv·2025·10.1021/acs.nanolett.4c03694·arXiv:2408.03518AbstractWe theoretically demonstrate that carbon nanoscrolls – spirally wrapped graphene layers with open endpoints – can be characterized by a large positive magnetoconductance. We show that when a carbon nanoscroll is subject to an axial magnetic field of several Tesla, the ballistic conductance at low carrier densities of the nanoscroll has an increase of about 200%. Importantly, we find that this positive magnetoconductance is not only preserved in an imperfect nanoscroll (with disorder or mild inter-turn misalignment) but can even be enhanced in the presence of on-site disorder. We prove that the positive magnetoconductance comes about the emergence of magnetic field-induced zero energy modes, specific of rolled-up geometries. Our results establish curved graphene systems as a new material platform displaying sizable magnetoresistive phenomena.Read more
Ideal two-turn carbon nanoscroll used in ballistic transport calculations.3 propertiesSimulatedCStudied MaterialExpand
Two-turn carbon nanoscroll with on-site disorder / mild inter-turn misalignment used for transport robustness analysis.1 propertySimulatedCStudied MaterialExpand
AB-stacked bilayer graphene zigzag nanoribbon reference system.1 propertySimulatedCStudied MaterialExpand
Research paperTheoreticalComputational KmcLarge positive magnetoconductance in carbon nanoscrollsYu-Jie Zhong, Jia-Cheng Li, Xuan-Fu Huang, Ying-Je Lee et al.arXiv·2025·10.1021/acs.nanolett.4c03694·arXiv:2408.03518AbstractWe theoretically demonstrate that carbon nanoscrolls – spirally wrapped graphene layers with open endpoints – can be characterized by a large positive magnetoconductance. We show that when a carbon nanoscroll is subject to an axial magnetic field of several Tesla, the ballistic conductance at low carrier densities of the nanoscroll has an increase of about 200%. Importantly, we find that this positive magnetoconductance is not only preserved in an imperfect nanoscroll (with disorder or mild inter-turn misalignment) but can even be enhanced in the presence of on-site disorder. We prove that the positive magnetoconductance comes about the emergence of magnetic field-induced zero energy modes, specific of rolled-up geometries. Our results establish curved graphene systems as a new material platform displaying sizable magnetoresistive phenomena.Read more
Ideal two-turn carbon nanoscroll used in ballistic transport calculations.3 propertiesSimulatedCStudied MaterialExpand
Two-turn carbon nanoscroll with on-site disorder / mild inter-turn misalignment used for transport robustness analysis.1 propertySimulatedCStudied MaterialExpand
AB-stacked bilayer graphene zigzag nanoribbon reference system.1 propertySimulatedCStudied MaterialExpand
Research paperTheoreticalComputational KmcLarge positive magnetoconductance in carbon nanoscrollsYu-Jie Zhong, Jia-Cheng Li, Xuan-Fu Huang, Ying-Je Lee et al.arXiv·2025·10.1021/acs.nanolett.4c03694·arXiv:2408.03518AbstractWe theoretically demonstrate that carbon nanoscrolls – spirally wrapped graphene layers with open endpoints – can be characterized by a large positive magnetoconductance. We show that when a carbon nanoscroll is subject to an axial magnetic field of several Tesla, the ballistic conductance at low carrier densities of the nanoscroll has an increase of about 200%. Importantly, we find that this positive magnetoconductance is not only preserved in an imperfect nanoscroll (with disorder or mild inter-turn misalignment) but can even be enhanced in the presence of on-site disorder. We prove that the positive magnetoconductance comes about the emergence of magnetic field-induced zero energy modes, specific of rolled-up geometries. Our results establish curved graphene systems as a new material platform displaying sizable magnetoresistive phenomena.Read more
Ideal two-turn carbon nanoscroll used in ballistic transport calculations.3 propertiesSimulatedCStudied MaterialExpand
Two-turn carbon nanoscroll with on-site disorder / mild inter-turn misalignment used for transport robustness analysis.1 propertySimulatedCStudied MaterialExpand
AB-stacked bilayer graphene zigzag nanoribbon reference system.1 propertySimulatedCStudied MaterialExpand
