论文标题
电子对终生效应的可能机制在$ srtio_3/latio_3 $接口
A possible mechanism of the lifetime effects of electron pairs at the $SrTiO_3/LaTiO_3$ interface
论文作者
论文摘要
电子对的生命周期效应应负责在钛酸腹膜/灯笼铝酸盐(Sto/ Lao)界面生产的单电子晶体管的非典型行为。此外,如Richter的实验所示,能量差距$δ$应持续在超导过渡温度$ T_C $之上。为了解释实验,本文试图将声子电子相互作用与电子对的形成和衰减的机理联系起来。此外,通过采用包括两个超导机制的玻色子效率模型,我们与能量差距$δ$剩下的有限有限$ t_c $相关的阶梯状$δ-t_c $。结果与实验大致一致。新引入的模型和形式主义可能有助于描述具有生命周期效果的超导体和有限的能量差距$δ$上方$ t_c $。
The lifetime effects of the electron pairs are supposed to be responsible for the atypical behavior of the single electron transistors manufactured at the strontium titanate/ lanthanum aluminate (STO/LAO) interface. In addition, as shown in Richter's experiments, the energy gap $Δ$ should persist above the superconducting transition temperature $T_c$. In order to explain the experiments, the present paper attempts to associate the phonon-electron interactions to the mechanism of the formation and decay of the electron pairs. Moreover, through employing the boson fermion model that includes two superconducting mechanisms, we reproduce the step-like $Δ-T_c$ relations with the energy gap $Δ$ remaining finite above $T_c$. The results are roughly consistent with the experiments. The newly-introduced models and formalism may be helpful in describing superconductors with lifetime effects and a finite energy gap $Δ$ above $T_c$.