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arXiv 0811.3222cond-mat.mes-hallcond-mat.str-el
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量子自旋霍尔系统中边态间的隧穿

Tunneling between edge states in a quantum spin Hall system

Anders Ström, Henrik Johannesson

摘要:

我们分析了一个量子自旋霍尔(QSH)器件,它的两个边缘连接一个点接触。接触支持净自旋隧道电流,可以通过实验探测两端电阻测量。我们发现,低偏置隧穿电流和微分电导表现出缩放与电压和温度的非线性依赖于电子-电子相互作用的强度。

英文摘要:

We analyze a quantum spin Hall (QSH) device with a point contact connecting two of its edges. The contact supports a net spin tunneling current that can be probed experimentally via a two-terminal resistance measurement. We find that the low-bias tunneling current and the differential conductance exhibit scaling with voltage and temperature that depend nonlinearly on the strength of the electron-electron interaction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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