Progress in Physics ›› 2022, Vol. 42 ›› Issue (6): 207-231.doi: 10.13725/j.cnki.pip.2022.06.002

Special Issue: 2023年, 第43卷

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Thermal Transport Measurements in Strongly Correlated Electronic Systems 

CHENG Shu-fan1 , XU Hao 1, BAO Song1 , WEN Jin-sheng1,2   

  1. 1. National Laboratory of Solid State Microstructures & Department of Physics, Nanjing University, Nanjing 210093, China; 2. Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China 
  • Online:2022-12-20 Published:2023-03-22
  • Supported by:

    National Key Projects for Research and Development of China with Grant No. 2021YFA1400400, the National Natural Science Foundation of China with Grants No. 12225407 and 12074174, China Postdoctoral Science Foundation with Grants No. 2022M711569 and 2022T150315, Jiangsu Province Excellent Postdoctoral Program with Grant No. 20220ZB5, and Fundamental Research Funds for the Central Universities.


When taking into account the electronic correlations such as the onsite Coulomb repulsion and coupling between electrons, spins and orbitals, many fascinating novel quantum states beyond the free-electron framework can emerge, e.g., unconventional superconductiviity and quantum spin liquids. The understanding of these new states not only will expand the existing territory of our knowledge, but also likely lead to revolution in quantum science and technology. Therefore, studying the strongly correlated physics is a cutting-edge theme in condensed matter physics. The parent state of cuprate high-temperature superconductors is a Mott insulator, an insulating state due to the strong electronic correlation, whereas the band theory predicts it to be metallic. Due to the Coulomb gap in Mott insulators, the charge degree of freedom is often frozen, which makes electrical transport measurements inapplicable. As a probe sensitive to the elementary excitations of quasiparticles not limited to electrons, but also including magnons, spinons, as well as phonons, thermal transport measurements play an important role in the study of strongly correlated electronic systems. In this paper, we review some of the recent interesting results on unconventional superconductors, heavy fermions and quantum spin liquids utilizing the longitudinal thermal transport measurements, complimentary to our recent review article on the progress of the transverse thermal conductivity measurements on the thermal Hall effect. 

Key words: strongly correlated electronic systems, unconventional superconductivity; cuprates, heavy fermions, quantum spin liquids, geometrical frustration, thermal conductivity; Seebeck effect

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