Large Tunable Rashba Spin Splitting of a Two-Dimensional Electron Gas in Bi2Se3
Large Tunable Rashba Spin Splitting of a Two-Dimensional Electron Gas in Bi2Se3
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DOI：
10.1103/physrevlett.107.096802
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发表时间：
2011-08-25
影响因子：
8.6
通讯作者：
Hofmann, Ph.
中科院分区：
文献类型：
--
作者：
King, P. D. C.;Hatch, R. C.;Hofmann, Ph.
我们报告了一个二维电子气的Rashba自旋分裂的拓扑绝缘体Bi2Se3角分辨光电子能谱。我们进一步证明了它的静电控制，并表明，自旋分裂可以实现这是至少一个数量级大于其他半导体。总之，这些结果表明，有望将自旋电子器件小型化到纳米级，并在室温下运行。
We report a Rashba spin splitting of a two-dimensional electron gas in the topological insulator Bi2Se3 from angle-resolved photoemission spectroscopy. We further demonstrate its electrostatic control, and show that spin splittings can be achieved which are at least an order-of-magnitude larger than in other semiconductors. Together these results show promise for the miniaturization of spintronic devices to the nanoscale and their operation at room temperature.