Thermopower and Mott formula for a Majorana edge state
Thermopower and Mott formula for a Majorana edge state
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DOI：
10.1103/physrevb.88.075304
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发表时间：
2013-08-07
影响因子：
3.7
通讯作者：
Refael, Gil
中科院分区：
文献类型：
--
作者：
Hou, Chang-Yu;Shtengel, Kirill;Refael, Gil
我们研究了导电导线和马约拉纳边态之间的热电效应。在隧穿极限下，我们首先使用Landauer-Buttiker形式推导出了关于热功率和导电导线与超导体之间的微分电导的莫特公式。当隧穿发生在导电导线和马约拉纳边缘态之间时，我们证明了不消失热能的存在。结合对导联和边缘状态之间的温差引起的差分电导和电压的测量，莫特公式提供了一种独特的方法来推断马约拉纳边缘状态的温度。
We study the thermoelectric effect between a conducting lead and a Majorana edge state. In the tunneling limit, we first use the Landauer-Buttiker formalism to derive the Mott formula relating the thermopower and the differential conductance between a conducting lead and a superconductor. When the tunneling takes place between a conducting lead and a Majorana edge state, we show that a nonvanishing thermopower can exist. Combining measurements of the differential conductance and the voltage induced by the temperature difference between the conducting lead and the edge state, the Mott formula provides a unique way to infer the temperature of the Majorana edge state.