تقرير
Electric bias control on impurity effects in bigraphene
| العنوان: | Electric bias control on impurity effects in bigraphene |
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| المؤلفون: | Pogorelov, Y. G., Santos, M. C., Loktev, V. M. |
| المصدر: | Phys. Rev. B 92, 075401 (2015) |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Disordered Systems and Neural Networks, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | Formation of localized impurity levels within the band gap in bigraphene under applied electric field is considered and the conditions for their collectivization at finite impurity concentration are established. It is shown that a qualitative restructuring of quasiparticle spectrum within the initial band gap and then specific metal-insulator phase transitions are possible for such disordered system and can be effectively controlled by variation of the electric field bias at given impurity perturbation potential and concentration. Since these effects can be expected at low impurity concentrations but at not too low temperatures, they can be promising for practical applications in nanoelectronics devices. Comment: 10 pages, 5 figures. Previous version was revised, some new discussion on observable effects of impurity band and a new figure were added |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.92.075401 |
| URL الوصول: | http://arxiv.org/abs/1410.1721 |
| رقم الأكسشن: | edsarx.1410.1721 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.92.075401 |
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