Orientational pinning of quantum Hall striped phase
| dc.creator | Takhtamirov, E. E. | |
| dc.creator | Volkov, V. A. | |
| dc.date | 2000-06-14 | |
| dc.date.accessioned | 2026-07-07T02:37:55Z | |
| dc.date.available | 2026-07-07T02:37:55Z | |
| dc.description | In ultra-clean 2D electron systems on (001) GaAs/AlGaAs upon filling high Landau levels, it was recently observed a new class of collective states, which can be related to the spontaneous formation of a charge density wave (``striped phase''). We address to the following unsolved problem: what is the reason for stripe pinning along the crystallographic direction [110]? It is shown that in a single heterojunction (001) III-V the effective mass of 2D electrons is anisotropic. This natural anisotropy is due to the reduced (C_{2v}) symmetry of the heterojunction and, even being weak (0.1 percent), can govern the stripe direction. A magnetic field parallel to the interface induces ``magnetic'' anisotropy of the effective mass. The competition of these two types of anisotropy provides quantitative description of the experiment. | |
| dc.description | 4 pages, LaTeX | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0006226 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0006226 | |
| dc.identifier | Pis'ma v Zh. Eksp. Teor. Fiz. 71 (2000) 612-617 [JETP Letters 71 (2000) 422-425] | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16475 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Orientational pinning of quantum Hall striped phase | |
| dc.type | text |