تقرير
Dimensional reduction from magnetic field in moir\'e superlattices
| العنوان: | Dimensional reduction from magnetic field in moir\'e superlattices |
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| المؤلفون: | Paul, Nisarga, Crowley, Philip J. D., Fu, Liang |
| المصدر: | Phys. Rev. Lett. 132, 246402 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Other Condensed Matter |
| الوصف: | Moir\'e materials provide a highly tunable platform in which novel electronic phenomena can emerge. We study strained moir\'e materials in a uniform magnetic field and predict highly anisotropic electrical conductivity which switches easy-axis as magnetic field or strain is varied. The dramatic anisotropy reflects one-dimensional localization (dimensional reduction) of the electron wavefunctions along a crystal axis due to quantum interference effects. This can be understood in an effective one-dimensional quasiperiodic Aubry-Andr\'e-like models, or in a complementary semiclassical picture. This phenomenon should be observable in strained moir\'e materials at realistic fields and low strain disorder, as well as unstrained systems with anisotropic Fermi surfaces. Comment: 6+6 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.132.246402 |
| URL الوصول: | http://arxiv.org/abs/2311.09323 |
| رقم الأكسشن: | edsarx.2311.09323 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.132.246402 |
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