| dc.contributor | 應物所 | |
| dc.creator (作者) | 許琇娟 | |
| dc.creator (作者) | Hsu, Hsiu-Chuan;Zhong, Yu-Jie;Li, Jia-Cheng;Huang, Xuan-Fu;Lee, Ying-Je;Chen, Ting-Zhen;Zhang, Jia-Ren;Huang, Angus;Ortix, Carmine;Chang, Ching-Hao | |
| dc.date (日期) | 2025-03 | |
| dc.date.accessioned | 9-May-2025 11:27:20 (UTC+8) | - |
| dc.date.available | 9-May-2025 11:27:20 (UTC+8) | - |
| dc.date.issued (上傳時間) | 9-May-2025 11:27:20 (UTC+8) | - |
| dc.identifier.uri (URI) | https://nccur.lib.nccu.edu.tw/handle/140.119/156924 | - |
| dc.description.abstract (摘要) | We theoretically demonstrate that carbon nanoscrolls, spirally wrapped graphene layers with open end points, 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 increases by about 200%. Importantly, we find that this positive magnetoconductance is not only preserved in an imperfect nanoscroll (with disorder or mild interturn misalignment) but can even be enhanced in the presence of on-site disorder. We prove that the positive magnetoconductance comes about with the emergence of magnetic-field-induced zero-energy modes, specific to rolled-up geometries. Our results establish curved graphene systems as a new material platform displaying sizable magnetoresistive phenomena. | |
| dc.format.extent | 108 bytes | - |
| dc.format.mimetype | text/html | - |
| dc.relation (關聯) | Nano Letters, Vol.25, No.14, pp.5550-5556 | |
| dc.subject (關鍵詞) | radial superlattice; Aharonov-Bohm effect; interfacial magnetic states; longitudinal magnetic field | |
| dc.title (題名) | Large Positive Magnetoconductance in Carbon Nanoscrolls | |
| dc.type (資料類型) | article | |
| dc.identifier.doi (DOI) | 10.1021/acs.nanolett.4c03694 | |
| dc.doi.uri (DOI) | https://doi.org/10.1021/acs.nanolett.4c03694 | |
