Report
Surface Shubnikov-de Hass oscillations and non-zero Berry phases of the topological hole conduction in Tl$_{1-x}$Bi$_{1+x}$Se$_2$
| العنوان: | Surface Shubnikov-de Hass oscillations and non-zero Berry phases of the topological hole conduction in Tl$_{1-x}$Bi$_{1+x}$Se$_2$ |
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| المؤلفون: | Eguchi, G., Kuroda, K., Shirai, K., Kimura, A., Shiraishi, M. |
| المصدر: | Phys. Rev. B 90, 201307 (2014) |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We report the observation of two-dimensional Shubnikov-de Hass (SdH) oscillations in the topological insulator Tl$_{1-x}$Bi$_{1+x}$Se$_2$. Hall effect measurements exhibited electron-hole inversion in samples with bulk insulating properties. The SdH oscillations accompanying the hole conduction yielded a large surface carrier density of $n_{\rm{s}}=5.1 \times10^{12}$/cm$^2$, with the Landau-level fan diagram exhibiting the $\pi$ Berry phase. These results showed the electron-hole reversibility around the in-gap Dirac point and the hole conduction on the surface Dirac cone without involving the bulk metallic conduction. Comment: 5 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.90.201307 |
| URL الوصول: | http://arxiv.org/abs/1406.1416 |
| رقم الانضمام: | edsarx.1406.1416 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.90.201307 |
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