arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0902.2662cond-mat.str-el
收藏

Rashba点中的局域磁态

Localized magnetic states in Rashba dots

Mircea Crisan, David Sanchez, Rosa Lopez, Llorens Serra, Ioan Grosu

摘要:

研究了准一维电子线中量子点中局域自旋轨道相互作用引起的局域磁矩的形成。使用类安德森模型来描述发生在这些Rashba点的磁矩,我们计算的平均场近似内的局部磁化。我们发现,磁化成为一个非平凡的函数的Rashba耦合强度。我们讨论了平衡和非平衡的情况。有趣的是,我们得到了一个磁相,这是稳定的大偏压由于Rashba相互作用。

英文摘要:

We study the formation of local moments in quantum dots arising in quasi-one dimensional electron wires due to localized spin-orbit (Rashba) interaction. Using an Anderson-like model to describe the occurrence of the magnetic moments in these Rashba dots, we calculate the local magnetization within the mean-field approximation. We find that the magnetization becomes a nontrivial function of the Rashba coupling strength. We discuss both the equilibrium and nonequilibrium cases. Interestingly, we obtain a magnetic phase which is stable at large bias due to the Rashba interaction.

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。

↑