（Ga，Mn）As隧穿实验的验证结果
Reconciling results of tunnelling experiments on (Ga,Mn)As
摘要：
提出了一种理论模型，其允许使（Ga，Mn）As的扫描隧穿光谱的发现[Richardella等人Science 327，66（2010）]与穿过（Ga，Mn）As薄层的隧穿的结果[Ohya等人Nature Phys.7，342（2011）; Phys. Rev. Lett. 104，167204（2010）]。根据所提出的模型，支持的泊松和薛定谔方程的自洽的解决方案，微分隧道电导作为偏置的函数的非单调行为与二维空穴子带的外观，而不是在GaAs：Be电极中，而不是在（Ga，Mn）As层。
英文摘要：
A theoretical model is presented which allows to reconcile findings of scanning tunnelling spectroscopy for (Ga,Mn)As [Richardella et al. Science 327, 66 (2010)] with results for tunneling across (Ga,Mn)As thin layers [Ohya et al. Nature Phys. 7, 342 (2011); Phys. Rev. Lett. 104, 167204 (2010)]. According to the proposed model, supported by a self-consistent solution of the Poisson and Schroedinger equations, a nonmonotonic behaviour of differential tunnel conductance as a function of bias is associated with the appearance of two-dimensional hole subbands rather in the GaAs:Be electrode than in the (Ga,Mn)As layer.
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