论文标题
由于非弹性运输而引起的非常规的四端热电运输：横向电流冷却，横向热电效应和麦克斯韦恶魔
Unconventional four-terminal thermoelectric transport due to inelastic transport: cooling by transverse current, transverse thermoelectric effect and Maxwell demon
论文作者
论文摘要
我们表明，在使用两个电极（源和排水液）和两个热浴的介观四端热电设备中，非弹性散射过程可能会导致非常规的热电运输。可以通过在两个热浴之间传递热电流来冷却源（或排水管），而热浴和电极之间没有净热量交换。这种效果被称为热电流冷却，是一种介绍热阻力效应。另外，还有一个横向热电效应，其中电流和功率可以通过横向温度偏置（即两个热浴之间的温度偏置）产生。这种横向热电效应起源于非弹性散射过程，由于电荷和热传输的空间分离而导致的优点和功率因数的提高可能具有优势。我们研究各种系统参数的四端热电设备的onsager电流亲和力关系，线性响应传输特性和四端热电设备的横向热电图。此外，我们研究了线性和非线性传输方案中横向电流效应的冷却效率和功率。我们还证明，通过利用量子点四末端系统中的非弹性运输，可以使用非平衡热浴场来实现麦克斯韦的恶魔。
We show that in mesoscopic four-terminal thermoelectric devices with two electrodes (the source and the drain) and two heat baths, inelastic scattering processes can lead to unconventional thermoelectric transport. The source (or the drain) can be cooled by passing a thermal current between the two heat baths, with no net heat exchange between the heat baths and the electrodes. This effect, termed as cooling by heat current, is a mesoscopic heat drag effect. In addition, there is a transverse thermoelectric effect where electrical current and power can be generated by a transverse temperature bias (i.e., the temperature bias between the two heat baths). This transverse thermoelectric effect, originates from inelastic scattering processes, may have advantages for improved figures of merit and power factor due to spatial separation of charge and heat transport. We study the Onsager current-affinity relations, the linear-response transport properties, and the transverse thermoelectric figure of merit of the four-terminal thermoelectric devices for various system parameters. In addition, we investigate the efficiency and power of the cooling by transverse current effect in both linear and nonlinear transport regimes. We also demonstrate that by exploiting the inelastic transport in the quantum-dot four-terminal systems, a type of Maxwell's demon can be realized using nonequilibrium heat baths.
