Correlations and spin flips in tunneling through a quantum dot
Correlations and spin flips in tunneling through a quantum dot
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DOI：
10.1103/physrevb.59.9802
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发表时间：
1999-04-15
影响因子：
3.7
通讯作者：
Akera, H
中科院分区：
文献类型：
--
作者：
Akera, H
为了发现量子点隧穿过程中的多体效应，从理论上研究了库仑振荡随面内磁场(自旋分裂)的变化。在没有Gin轨道相互作用的情况下，在小隧穿速率下计算了电导和传输系数，并用自旋分裂的普适函数表示，除了自旋的大小外，它与波函数的细节无关。这种普适函数在观察具有相反自旋的电子的隧穿和自旋HIP引起的退相之间的关联时是有用的。[S0163-1829(99)11815-0]。
Variations of the Coulomb oscillations with the in-plane magnetic field (the spin splitting) are theoretically studied to find many-body effects in tunneling through a quantum dot. The conductance and the transmission coefficient are calculated at small tunneling rates in the absence of gin-orbit interactions and expressed in terms of universal functions of the spin splitting, which have no dependence on details of wave functions except the magnitude of spin. Such universal functions are shown to be useful in observing the correlation between tunnelings of electrons with opposite spins and the dephasing due to spin hips. [S0163-1829(99)11815-0].