We study the thermoelectric effect in a small quantum dot with a magnetic impurity in the Coulomb blockade regime.The electrical conductance,thermal conductance,thermopower,and the thermoelectrical figure of merit(FOM)are calculated by using Green’s function method.It is found that the peaks in the electrical conductance are split by the exchange coupling between the electron entering into the dot and the magnetic impurity inside the dot,accompanied by the decrease in the height of peaks.As a result,the res...
【英文摘要】
We study the thermoelectric effect in a small quantum dot with a magnetic impurity in the Coulomb blockade regime. The electrical conductance, thermal conductance, thermopower, and the thermoelectrical figure of merit(FOM) are calcu-lated by using Green's function method. It is found that the peaks in the electrical conductance are split by the exchange coupling between the electron entering into the dot and the magnetic impurity inside the dot, accompanied by the decrease in the height of peaks. As a resul...
【基金】
Project supported by the National Natural Science Foundation of China(Grant No.61274101);
the SKLSM(Grant No.CHJG200901)
【更新日期】
2014-03-27
【分类号】
O413
【正文快照】
1.IntroductionWith some recent experimental[1–5]and theoretical[6–9]breakthroughs,the thermoelectric effect in low-dimensionalmesoscopic systems has attracted much interest due to the highefficiency of converting heat into electricity,or vice versa.The
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