arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1204.2143cond-mat.str-el
收藏

多能级量子点中库仑相互作用与自旋轨道效应的相互作用

Interplay of Coulomb interaction and spin-orbit effects in multi-level quantum dots

S. Grap, V. Meden, S. Andergassen

摘要:

研究了在局域库仑排斥作用下,电子输运通过具有Rashba自旋轨道相互作用的多能级量子点的性质。受最近实验的启发,我们计算了有限塞曼场$B$中自旋-轨道相互作用引起的能级分裂,这提供了一个重整化自旋-轨道能量的度量。这种能级分裂是在有限的$B$特性的多能级结构的近藤脊的抑制负责。此外,重整化$g$ -因子的依赖关系上的相对取向的应用$B$字段和自旋轨道方向以下两个不同的协议在实验中使用的研究。

英文摘要:

We study electron transport through a multi-level quantum dot with Rashba spin-orbit interaction in the presence of local Coulomb repulsion. Motivated by recent experiments, we compute the level splitting induced by the spin-orbit interaction at finite Zeeman fields $B$, which provides a measure of the renormalized spin-orbit energy. This level splitting is responsible for the suppression of the Kondo ridges at finite $B$ characteristic for the multi-level structure. In addition, the dependence of renormalized $g$-factors on the relative orientation of the applied $B$ field and the spin-orbit direction following two different protocols used in experiments is investigated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑