Spin echoes in the charge transport through phosphorus donors in silicon.
Spin echoes in the charge transport through phosphorus donors in silicon.
复制标题
通过硅中磷供体的电荷传输中的自旋回波。
DOI：
--
复制
发表时间：
2008
影响因子：
8.6
通讯作者：
M. Brandt
中科院分区：
文献类型：
--
作者：
H. Huebl;F. Hoehne;Benno Grolik;A. Stegner;M. Stutzmann;M. Brandt
通过回波断层扫描的自旋回波的电检测被用来观察与硅中的磷施主电子的自旋状态的SiO2界面附近的电读出相关联的相干过程。使用Carr-Purcell脉冲序列，观察到时间常数为1.7+/-0.2 μ s的回波衰减，并根据退相干和复合时间进行了讨论。因此，电自旋回波断层成像可以用于研究自旋相关传输过程的动力学，例如，用于量子信息处理的实际自旋量子位器件。
The electrical detection of spin echoes via echo tomography is used to observe coherent processes associated with the electrical readout of the spin state of phosphorus donor electrons in silicon near a SiO2 interface. Using the Carr-Purcell pulse sequence, an echo decay with a time constant of 1.7+/-0.2 micros is observed and discussed in terms of decoherence and recombination times. Electrical spin echo tomography thus can be used to study the dynamics of the spin-dependent transport processes, e.g., in realistic spin qubit devices for quantum information processing.