تقرير
Spin connection and boundary states in a topological insulator
| العنوان: | Spin connection and boundary states in a topological insulator |
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| المؤلفون: | Parente, V., Lucignano, P., Vitale, P., Tagliacozzo, A., Guinea, F. |
| المصدر: | Phys.Rev.B83:075424,2011 |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter High Energy Physics - Theory |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, High Energy Physics - Theory |
| الوصف: | We study the surface resistivity of a three-dimensional topological insulator when the boundaries exhibit a non trivial curvature. We obtain an analytical solution for a spherical topological insulator, and we show that a non trivial quantum spin connection emerges from the three dimensional band structure. We analyze the effect of the spin connection on the scattering by a bump on a flat surface. Quantum effects induced by the geometry lead to resonances when the electron wavelength is comparable to the size of the bump. Comment: 11 pages, 4 figures, submitted |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.83.075424 |
| URL الوصول: | http://arxiv.org/abs/1011.0565 |
| رقم الأكسشن: | edsarx.1011.0565 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.83.075424 |
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