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DOI | 10.1126/science.aar3766 |
Counter-propagating charge transport in the quantum Hall effect regime | |
Lafont, Fabien1,2; Rosenblatt, Amir1; Heiblum, Moty1; Umansky, Vladimir1 | |
2019-01-04 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 363期号:6422页码:54-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Israel; France |
英文摘要 | The quantum Hall effect, observed in a two-dimensional (2D) electron gas subjected to a perpendicular magnetic field, imposes a 1D-like chiral, downstream, transport of charge carriers along the sample edges. Although this picture remains valid for electrons and Laughlin's fractional quasiparticles, it no longer holds for quasiparticles in the so-called hole-conjugate states. These states are expected, when disorder and interactions are weak, to harbor upstream charge modes. However, so far, charge currents were observed to flow exclusively downstream in the quantum Hall regime. Studying the canonical spin-polarized and spin-unpolarized v = 2/3 hole-like states in GaAs-AlGaAs heterostructures, we observed a significant upstream charge current at short propagation distances in the spin unpolarized state. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000455315800058 |
WOS关键词 | SPIN TRANSITIONS ; EDGE STATES ; NU=2/3 ; MODES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200439 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Weizmann Inst Sci, Dept Condensed Matter Phys, Braun Ctr Submicron Res, IL-76100 Rehovot, Israel; 2.Coll France, 11 Pl Marcelin Berthelot, F-75231 Paris 05, France |
推荐引用方式 GB/T 7714 | Lafont, Fabien,Rosenblatt, Amir,Heiblum, Moty,et al. Counter-propagating charge transport in the quantum Hall effect regime[J]. SCIENCE,2019,363(6422):54-+. |
APA | Lafont, Fabien,Rosenblatt, Amir,Heiblum, Moty,&Umansky, Vladimir.(2019).Counter-propagating charge transport in the quantum Hall effect regime.SCIENCE,363(6422),54-+. |
MLA | Lafont, Fabien,et al."Counter-propagating charge transport in the quantum Hall effect regime".SCIENCE 363.6422(2019):54-+. |
条目包含的文件 | 条目无相关文件。 |
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