摘要
We show that the Coulomb interaction between two circuits separated by an insulating layer leads to unconventional thermoelectric effects,such as the cooling by thermal current effect,the transverse thermoelectric effect and Maxwell’s demon effect.The first refers to cooling in one circuit induced by the thermal current in the other circuit.The middle represents electric power generation in one circuit by the temperature gradient in the other circuit.The physical picture of Coulomb drag between the two circuits is first demonstrated for the case with one quantum dot in each circuit and it is then elaborated for the case with two quantum dots in each circuit.In the latter case,the heat exchange between the two circuits can vanish.Finally,we also show that the Maxwell’s demon effect can be realized in the four-terminal quantum dot thermoelectric system,in which the quantum system absorbs the heat from the high-temperature heat bath and releases the same heat to the low-temperature heat bath without any energy exchange with the two heat baths.Our study reveals the role of Coulomb interaction in non-local four-terminal thermoelectric transport.
作者
席萌萌
王荣倩
陆金成
蒋建华
Mengmeng Xi;Rongqian Wang;Jincheng Lu;Jian-Hua Jiang(Hefei National Laboratory for Physical Sciences at Microscale,University of Science and Technology of China,Hefei 230026,China;School of Physical Science and Technology&Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University,Suzhou 215006,China;Center for Phononics and Thermal Energy Science,China-EU Joint Lab on Nanophononics,Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,School of Physics Science and Engineering,Tongji University,Shanghai 200092,China)
基金
the Science and Technological Fund of Anhui Province for Outstanding Youth(Grant No.1508085J02)
the National Natural Science Foundation of China(Grant Nos.61475004,11675116,and 12074281)
the Chinese Academy of Sciences(Grant No.XDA04030213)
the Jiangsu Distinguished Professor Funding and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
the China Postdoctoral Science Foundation(Grant No.2020M681376)。