Hole spin helix: Anomalous spin diffusion in anisotropic strained hole quantum wells
文献类型：期刊论文
| 作者 | Sacksteder, VE ; Bernevig, BA |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:16 |
| ISSN号 | 1098-0121 |
| 通讯作者 | Sacksteder, VE (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We obtain the spin-orbit interaction and spin-charge coupled transport equations of a two-dimensional heavy hole gas under the influence of strain and anisotropy. We show that a simple two-band Hamiltonian can be used to describe the holes. In addition to the well-known cubic hole spin-orbit interaction, anisotropy causes a Dresselhaus-like term, and strain causes a Rashba term. We discover that strain can cause a shifting symmetry of the Fermi surfaces for spin up and down holes. We predict an enhanced spin lifetime associated with a spin helix standing wave similar to the Persistent Spin Helix which exists in the two-dimensional electron gas with equal Rashba and Dresselhaus spin-orbit interactions. These results may be useful both for spin-based experimental determination of the Luttinger parameters of the valence-band Hamiltonian and for creating long-lived spin excitations. |
| 资助信息 | David and Lucile Packard Foundation; National Science Foundation of China; 973 program of China [2011CBA00108]; [ONR-N00014-11-1-0635]; [Darpa-N66001-11-1-4110]; [MURI-130-6082] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59548]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sacksteder, VE,Bernevig, BA. Hole spin helix: Anomalous spin diffusion in anisotropic strained hole quantum wells[J]. PHYSICAL REVIEW B,2014,89(16). |
| APA | Sacksteder, VE,&Bernevig, BA.(2014).Hole spin helix: Anomalous spin diffusion in anisotropic strained hole quantum wells.PHYSICAL REVIEW B,89(16). |
| MLA | Sacksteder, VE,et al."Hole spin helix: Anomalous spin diffusion in anisotropic strained hole quantum wells".PHYSICAL REVIEW B 89.16(2014). |
入库方式： OAI收割
来源：物理研究所
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