文献类型：期刊文献

英文题名：Nonreciprocity and thermoelectric performance in a double-dot Aharonov-Bohm interferometer

作者：Yan, Yonghong[1];Wu, Haifei[1];Jiang, Feng[2];Zhao, Hui[3,4]

机构：[1]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China;[2]Shanghai Univ Elect Power, Sch Math & Phys, Shanghai 200090, Peoples R China;[3]Tongji Univ, Key Lab Adv Microstruct Mat, Minist Educ, Shanghai 200092, Peoples R China;[4]Tongji Univ, Dept Phys, Shanghai 200092, Peoples R China

年份：2019

卷号：126

期号：12

外文期刊名：JOURNAL OF APPLIED PHYSICS

收录：SCI-EXPANDED(收录号：WOS:000488828300034)、、EI(收录号：20194007490471)、Scopus(收录号：2-s2.0-85072785396)、WOS

基金：This work was supported by the National Natural Science Foundation of China (NNSFC) (Grant Nos. 11575116, 51202149, and 11474218).

语种：英文

外文关键词：Efficiency - Interferometers

外文摘要：We investigate nonreciprocity and thermoelectric performance beyond the linear response regime in a double-dot Aharonov-Bohm interferometer that is connected to three reservoirs. In the presence of a magnetic flux (broken time-reversal symmetry), we find that the difference between the forward and reverse particle currents can reach the order of 10% under certain conditions. We also show that when the temperature gradient is reversed, the thermoelectric efficiency and output power both change; however, the discrepancies are minimal. Indeed, although breaking time-reversal symmetry can enhance the maximum efficiency, it reduces the maximum power in the present model. These results could be useful for the design of nanoscale thermoelectric devices.