Home

Wei Ku

Title: Professor
Email: weiku@sjtu.edu.cn
Address: Room 203, Tsung Dao-Lee Institute, 800 Dongchuan Road, Shanghai, 200240
Area of Physics: Theoretical / Computational Condensed Matter Physics
 
Research Interests:
  1. Strongly correlated materials and their excitations
  2. Physical effects of disordered impurities in materials
  3. Unconventional theory of high-temperature superconductivity
  4. Analytical properties of topological insulating states
  5. Computation and method development of quantum many-body problems
 Now hiring: junior faculties, postdoctoral researchers, graduate students, and undergraduate students, offering  internationally competitive salary level
 
Biographical Sketch:
 
After receiving his PhD degree from University of Tennessee at Knoxville in 2000, Professor Ku conducted his postdoctoral research in University of California at Davis from 2001 to 2003.  He then worked as a staff scientist (assistant physicist, associate physicist, and physicist) in Brookhaven National Laboratory and served as an adjunct professor in Stony Brook University since 2003, until he accepted the Zhiyuan chaired professor position in Shanghai Jiaotong University in 2016.  His main research area is theory and computation of condensed matter physics in real materials, with contributions mostly in the field of Fe-based high-temperature superconductors, electronic excitaitons, and first-principles computational methods.  Up to 2015, he has published more than 70 manuscripts, about half of which are in high-profile journals like the PNAS, Nature Physics, Phys. Rev. X, and Phys. Rev. Lett.
 
Selected Publications:
  1. “What is the valence of Mn in Ga1-xMnxN?”
    Ryky Nelson, Tom Berlijn, Juana Moreno, Mark Jarrell, and Wei Ku, Phys. Rev. Lett. 115, 197203 (2015)
  2. “Weak phase stiffness and nature of the quantum critical point in underdoped cuprates”
    Yucel Yildirim and Wei Ku, Phys. Rev. B 92, 180501(R) (2015)
  3. “Itinerancy enhanced quantum fluctuation of magnetic moments in iron-based superconductors”
    Yu-Ting Tam, Dao-Xin Yao and Wei Ku, Phys. Rev. Lett. 115, 117001 (2015)
  4. “Interpretation of Scanning Tunneling Quasiparticle Interference and Impurity States in Cuprates”
    A. Kreisel, et al., Phys. Rev. Lett. 114, 217002 (2015)
  5. “Bulk Signatures of Pressure-Induced Band Inversion and Topological Phase Transitions in Pb1−xSnxSe”
    Xiaoxiang Xi, et al., Phys. Rev. Lett. 113, 096401 (2014)
  6. “Consequences of broken translational symmetry in FeSexTe1-x”
    L. Moreschini, et al., Phys. Rev. Lett. 112, 087602 (2014)
  7. “Doping effects of Se vacancies in monolayer FeSe”
    Tom Berlijn, Hai-Ping Cheng, P. J. Hirschfeld, and Wei Ku, Phys. Rev. B 89, 020501(R) (2014)
  8. “First-principles method of propagation of tightly bound excitons in LiF: Verifying the exciton band structure with inelastic x-ray scattering”
    Chi-Cheng Lee, et al., Phys. Rev. Lett. 111, 157401 (2013)
  9. “Signatures of a pressure-induced topological quantum phase transition in BiTeI”
    Xiaoxiang Xi, et al., Phys. Rev. Lett. 111, 155701 (2013)
  10. “Effects of disordered Ru substitution in BaFe2As2: possible realization of superdiffusion in real materials”
    Limin Wang, et al., Phys. Rev. Lett. 110, 037001 (2013)
  11. “Temperature-dependent transformation of the magnetic excitation spectrum on approaching superconductivity in Fe1-x(Ni/Cu) xTe 0.5Se0.5”
    Zhijun Xu, et al., Phys. Rev. Lett. 109, 227002 (2012)
  12. “Effective doping and suppression of Fermi surface reconstruction via Fe vacancy disorder in KxFe2-ySe2”
    Tom Berlijn, P. J. Hirschfeld, and Wei Ku, Phys. Rev. Lett. 109, 147003 (2012)
  13. “Insulating magnetism in vacancy-ordered K0.8Fe1.6Se2”
    Wei-Guo Yin, Chia-Hui Lin, and Wei Ku, Phys. Rev. B 86, 081106(R) (2012)
  14. “Do transition metal substitutions dope carriers in iron-based superconductors?”
    Tom Berlijn, Chai-Hui Lin, William Garber and Wei Ku, Phys. Rev. Lett. 108, 207003 (2012)
  15. “Relevance of the Heisenberg-Kitaev Model for the Honeycomb Lattice Iridates A2IrO3”
    Yogesh Singh, et al., Phys. Rev. Lett. 108, 127203 (2012)
  16. “One-Fe versus Two-Fe Brillouin Zone of Fe-Based Superconductors: Creation of the Electron Pockets via Translational Symmetry Breaking”
    Chia-Hui Lin, Tom Berlijn, Limin Wang, Chi-Cheng Lee, Wei-Guo Yin, and Wei Ku, Phys. Rev. Lett. 107, 257001 (2011)
  17. “Kinetics-Driven Superconducting Gap in Underdoped Cuprate Superconductors Within the Strong-Coupling Limit”
    Y. Yildirim and Wei Ku, Phys. Rev. X 1, 011011 (2011)
  18. “Can disorder alone destroy the eg’ hole pockets of Na0.3CoO2?”
    Tom Berlijn, Dmitri Volja, and Wei Ku, Phys. Rev. Lett. 106, 077005 (2011)
  19. “Room temperature magnetism of Cu-doped ZnO films probed by soft X-ray magnetic circular dichroism”
    T.S. Herng, et al., Phys. Rev. Lett. 105, 207201 (2010)
  20. “A unified picture for magnetic correlations in iron-based high-temperature superconductors”
    Wei-Guo Yin, Chi-Cheng Lee, and Wei Ku, Phys. Rev. Lett. 105, 107004 (2010)
  21. “Dynamical Linear Response of TDDFT with LDA+U Functional: Strongly hybridized Frenkel excitons in Mott insulators”
    Chi-Cheng Lee, Hung-Chung Hsueh, and Wei Ku, Phys. Rev. B 82, 081106 (R) (2010)
  22. “Unfolding first-principles band structures”
    Wei Ku, Tom Berlijn, and Chi-Cheng Lee, Phys. Rev. Lett. 104, 216401 (2010)
  23. “Experimental observation of the crystallization of a paired holon state”
    A. Rusydi, W. Ku, et al., Phys. Rev. Lett. 105, 026402 (2010)
  24. “Effect of covalent bonding on magnetism and the missing neutron intensity in copper oxide compounds”
    Andrew C Walters, et al., Nature Physics 5, 867 (2010)
  25. “Charge Ordering in Half-Doped Manganites: Weak Charge Disproportion and Leading Mechanisms”
    D. Volja, W.-G. Yin, and Wei Ku, Europhys. Lett. 89 27008 (2010)
  26. “Ferro-Orbital Order and Strong Magnetic Anisotropy in the Parent Compounds of Iron-Pnictide Superconductors”
    Chi-Cheng Lee, Wei-Guo Yin, and Wei Ku, Phys. Rev. Lett. 103, 267001 (2009)
  27. “Tuning Hole Mobility, Concentration, and Repulsion in High-Tc Cuprates via Apical Atoms”
    W.-G. Yin and Wei Ku, Phys. Rev. B 79, 214512 (2009)
  28. “Dynamical reconstruction of the exciton in LiF with inelastic x-ray scattering”
    Peter Abbamonte, Tim Graber, James P. Reed, Serban Smadici, Chen-Lin Yeh, Abhay Shukla, Jean-Pascal Rueff, and Wei Ku, PNAS 105, 12159 (2008)