content2 = 'Peijie Sun

Career History：
2012 – Present, Professor at Institute of Physics, Chinese Academy of Sciences
2007 – 2012, Postdoctoral researcher, Max-Planck Institute CPfS, Dresden Germany
2005 – 2007, Research lecturer, Iwate University, Japan
2005, Ph.D, Toyama University, Japan

Research Interests：
Low-temperature thermal and electrical transport properties of electron correlated and topological quantum materials; Unconventional thermoelectric properties of quantum materials.

Main achievements:

  1. Discovered the spin supersolid phase in a quantum magnet and its giant magnetocaloric effect at very low temperatures, Nature 625, 270–275 (2024).
  2. Demonstrated the generic relationship between the enhanced Seebeck effect and the spin entropy in d electron based magnets. Generic Seebeck effect from spin entropy, The innovation 2, 100101 (2021).
  3. By studying the Nernst effect of heavy fermions, clarified the microscopic origin of enhanced thermoelectric power in Kondo lattice compounds, see PRL 110, 216408 (2013); 117, 216401 (2016).
  4. Discovered large quantum oscillations of thermal conductivity in topological semimetal TaAs and proposed the chiral zero sound of Weyl fermions as exotic heat carriers (collaborated with Xi Dai), see Phys. Rev. X. 9, 031036 (2019), and the view article at APS website "The sound of Weyl fermions", https://physics.aps.org/articles/v12/67
  5. By combining Kondo lattice physics and magnetic frustration, we discovered a robust "quantum critical phase" in CePdAl, cf.  Nature Physics 15, 1261 (2019), see also the view article “Frustration can be critical” published by Nature Physics 15, 1212 (2019)
  6. Observed a large Nernst effect in topological semimetal Cd3As2, and proposed a new concept of harvesting transverse thermoelectricity in topological semimetals, see Sci. China - Phys. Mech. Astron. 63, 237011 (2020), and the view article by Prof. Xianhui Chen, SCPMA 63, 237031 (2020).
  7. Discovered a new mechanism of Seebeck effect derived from asymmetric charge relaxation, a feature commonly expected in correlated materials, see Peijie Sun et al., Nature Commun. 6, 7475 (2015). 

Selected Recent Publications：

1. Giant magnetocaloric effect in spin supersolid candidate Na2BaCo(PO4)2. Nature 625, 270–275 (2024).

2. Q. Dong et al., A quasi-one-dimensional bulk thermoelectrics with high performance near room temperature, Science Bulletin 68 (2023) 920–927. 
3. Peijie Sun et al., Generic Seebeck effect from spin entropy, The innovation 2, 100101 (2021). 
4. Junsen Xiang, Genfu Chen & Peijie Sun et al., Large transport thermoelectric figure of merit in a topological Dirac semimetal Ce3As2, Sci. China-Phys. Mech. Astron. 63, 237011 (2020)
5. Hencan Zhao, Q. Si*, Frank Steglich*, Peijie Sun* et al, Quantum-critical phase from frustrated magnetism in a strongly correlated metal, Nature Phys. 15, 1261 (2019). 
6. Junsen Xiang, X. Dai & Peijie Sun* et al., Giant magnetic quantum oscillations in the thermal conductivity of TaAs: Indications of chiral zero sound, Phys. Rev. X 9, 031036 (2019).
7, Peijie Sun and F. Steglich, Nernst effect: Evidence of local Kondo Scattering in Heavy fermions. Phys. Rev. Lett. 110, 216408 (2013).
8, Peijie Sun et al., Large Seebeck effect by charge-mobility engineering. Nature Commun. 6, 7475 (2015).
9, H.Pfau, P. Sun et al., Thermal and electrical transport across a magnetic quantum critical point. Nature 484, 493 (2012).
10, Peijie Sun et al., Resonant charge relaxation as a likely source of the enhanced thermopower in FeSi. Phys. Rev. B 90, 245146 (2014).
11, U. Stockert, Peijie Sun et al., Giant isotropic Nernst effect in an anisotropic Kondo semimetal. Phys. Rev. Lett. 117, 216401 (2016).

Email: pjsun@iphy.ac.cn

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