| dc.contributor | 應物所 | |
| dc.creator (作者) | Hsiung, T.-C.;Chen, D.-Y.;Zhao, L.;Lin, Y.-H.;Mou, C.-Y.;Lee, T.-K.;Wu, M.-K.;Chen, Yang Yuan | |
| dc.creator (作者) | 陳洋元 | zh_TW |
| dc.date (日期) | 2013-10 | |
| dc.date.accessioned | 26-May-2015 18:01:10 (UTC+8) | - |
| dc.date.available | 26-May-2015 18:01:10 (UTC+8) | - |
| dc.date.issued (上傳時間) | 26-May-2015 18:01:10 (UTC+8) | - |
| dc.identifier.uri (URI) | http://nccur.lib.nccu.edu.tw/handle/140.119/75305 | - |
| dc.description.abstract (摘要) | In this study, a series of Bi1.5Sb0.5Te 1.7Se1.3 (BSTS) flakes 80-nm to 140-μm in thickness was fabricated to investigate their metallic surface states. We report the observation of surface-dominated transport in these topological insulator BSTS nanoflakes. The achievement of surface-dominated transport can be attributed to high surface mobility (∼3000 cm2/V s) and low bulk mobility (12 cm2/V s). Up to 90% of the total conductance, the surface channel was estimated based on the thickness dependence of electrical conductance and the result of the Shubnikov-de Hass oscillations in a 200-nm BSTS. The nature of nontrivial Dirac surface states was also confirmed by the weak anti-localization effect. © 2013 AIP Publishing LLC. | |
| dc.format.extent | 932437 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.relation (關聯) | Applied Physics Letters, 103(16), 論文編號 163111 | |
| dc.subject (關鍵詞) | Anti-localization effects; Electrical conductance; Enhanced surface; Metallic surface; Quantum oscillations; Surface mobility; Thickness dependence; Topological insulators; Surface states; Electric insulators | |
| dc.title (題名) | Enhanced surface mobility and quantum oscillations in topological insulator Bi1.5Sb0.5Te1.7Se1.3 nanoflakes | |
| dc.type (資料類型) | article | en |
| dc.identifier.doi (DOI) | 10.1063/1.4826092 | |
| dc.doi.uri (DOI) | http://dx.doi.org/10.1063/1.4826092 | |
