Indications of surface-dominated transport in single crystalline nanoflake devices of topological insulator Bi_{1.5}Sb_{0.5}Te_{1.8}Se_{1.2}

• المؤلفون الرئيسيون: Xia, Bin, Ren, Peng, Sulaev, Azat, Liu, Peng, Shen, Shun-Qing, Wang, Lan
• مؤلفون آخرون: School of Physical and Mathematical Sciences
• التنسيق: مقال
• اللغة: English
• منشور في: 2013
• الموضوعات: DRNTU::Science::Mathematics
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/96430; http://hdl.handle.net/10220/9916
• المؤسسة: Nanyang Technological University

We report experimental evidence of surface-dominated transport in single crystalline nanoflake devices of topological insulator Bi1.5Sb0.5Te1.8Se1.2 (BSTS). The resistivity measurements show dramatic differences between the nanoflake devices and bulk single crystal. Based on a two-channel model, t...