Wilamowski Zbyslaw, Malissa Hans, Schäffler Friedrich, Jantsch Wolfgang
Institut für Halbleiter- und Festkörperphysik, Johannes Kepler Universität, A-4040 Linz, Austria.
Phys Rev Lett. 2007 May 4;98(18):187203. doi: 10.1103/PhysRevLett.98.187203. Epub 2007 May 3.
We investigate the Zeeman splitting of the two-dimensional electron gas in an asymmetric silicon quantum well, performing electron-spin-resonance (ESR) experiments. Applying a small dc current we observe a shift in the resonance field due to the additional current-induced Bychkov-Rashba type of spin-orbit field. We also show that a high frequency current may induce electric dipole spin resonance very efficiently. We identify different contributions to this type of ESR signal.
我们通过进行电子自旋共振（ESR）实验，研究了非对称硅量子阱中二维电子气的塞曼分裂。施加一个小的直流电流时，我们观察到由于额外的电流诱导的别赫科夫 - 拉什巴型自旋轨道场，共振场发生了偏移。我们还表明高频电流可以非常有效地诱导电偶极子自旋共振。我们确定了对这种类型的ESR信号的不同贡献。
