Department of Physics Faculty

Ziqiang Wang

Professor of Physics

Photo of Ziqiang Wang

Ziqiang Wang

Ph.D.

Contact

Higgins Hall 330F

Telephone: 617-552-0687

Email: ziqiang.wang@bc.edu

Education

  • Ph.D., Columbia University

Research Interests

Theory of correlated electron materials including high temperature superconductors and other complex oxides such as cobaltates and ruthenates. Itinerant and localized magnetism and heavy fermion systems. Quantum spin systems. Unconventional superconductivity. Emergent quantum electronic states and topologically ordered phases of matter. Fractional and integer quantum Hall systems and other mesoscopic systems including graphene.

Selected Publications

  • "Chiral superconductivity in heavy-fermion metal UTe2",聽 Nature 579, 523 (2020).
  • "Discovery of quantum limit Chern Magnet TbMn6Sn6", Nature, (2020).
  • "Atomic line defects and zero-energy end states in monolayer Fe(Te,Se) high-temperature superconductors", Nature Physics 16, 536 (2020).
  • "Correlated insulating phases of twisted bilayer graphene at commensurate filling fractions", Physical Review B (2020).
  • "Zero-energy bound states in the high-temperature superconductors at the two-dimensional limit", Science Advances 6, eaax7547 (2020).
  • "Dynamical slave-boson mean-field theory of the Mott transition in the Hubbard model in the large-z limit", Physical Review B 101, 035196 (2020).
  • "Observation of a Novel Orbital Selective Mott Transition in Ca1.8Sr0.2RuO4," Phys. Rev. Lett. 103, 097001 (2009).
  • "Valence Bond Glass Theory of Electronic Disorder and the Pseudogap State of High-Temperature Cuprate Superconductors," Phys. Rev. Lett. 102, 107001 (2009).
  • "Coexistence of Competing Orders with Two Energy Gaps in Real and Momentum Space in the High Temperature Superconductor Bi2Sr2-xLaxCuO6+," Phys. Rev. Lett. 101, 207002 (2008).
  • 鈥淣辞诲补濒 d+id Pairing and Topological Phases on the Triangular Lattice of NaxCoO2路yH2O: Evidence for an Unconventional Superconducting State,鈥� Phys. Rev. Lett. 100, 217002 (2008).
  • 鈥淐orrelating Off-Stoichiometric Doping and Nanoscale Electronic Inhomogeneity in the High-Tc Superconductors,鈥� Phys. Rev. Lett. 98, 076401 (2007).
  • 鈥淐harge and Spin Order on the Triangular Lattice: NaxCoO2 at x=0.5,鈥� Phys. Rev. Lett. 98, 226402 (2007).
  • 鈥淚tinerant and Localized Magnetism on the Triangular Lattice: Sodium-Rich Phases of Nax颁辞翱2,鈥� Phys. Rev. B 76, 180402 (2007).
  • 鈥淚nhomogeneous States with Checkerboard Order in the t-J 尘辞诲别濒,鈥� Phys. Rev. B 73, 060501 (2006).
  • 鈥淓lectron Correlation and Fermi Surface Topology in NaxCoO2," Phys. Rev. Lett. 94, 206401 (2005).
  • 鈥淓dge-Current in Time-Reversal Symmetry Breaking Superconductors," Phys. Rev. Lett. 95, 017004 (2005).
  • 鈥淰ortices, Instantons and Deconfinement in Bilayer Quantum Hall Exciton Superfluid," Phys. Rev. Lett. 94, 176804 (2005).
  • "Tunneling, Dissipation, and Superfluid Transition in Quantum Hall Bilayers," Phys. Rev. Lett. 92, 136803 (2004).
  • 鈥淎RPES on Na0.6CoO2: Fermi Surface and Unusual Band Dispersion,鈥� Phys. Rev. Lett. 92, 246403 (2004).
  • 鈥淔ermi Surface Topology of Ca1.5Sr0.5RuO4 Determined by ARPES,鈥� Phys. Rev. Lett. 93, 177007 (2004).
  • 鈥淨uasiparticle Line Shape of Sr2RuO4 and Its Relation to Anisotropic Transport,鈥� Phys. Rev. Lett. 92, 137002 (2004).
  • 鈥淧seudogap, Competing Order, and the Coexistence of Staggered Flux and d-Wave Pairing in High-Temperature Superconductors,鈥� Phys. Rev. B 70, 020501(R) (2004).
  • "Phase Diagram for Quantum Hall Bilayers at nu=1," Phys. Rev. Lett. 91, 116802 (2003).
  • "Spectral Properties of a Quantum Impurity in d-Wave Superconductors," Phys. Rev. B 67, 180507 (2003).
  • "Local Moment Formation in the Superconducting State of a Doped Mott Insulator,'' Phys. Rev. Lett. 89, 217002 (2002).
  • "Electron-Electron Interaction, Quantum Coulomb Gap, and Dynamical Scaling Near Integer Quantum Hall Transitions,'' Phys. Rev. B 65, 195316 (2002).
  • "Role of Disorder in Half-Filled High Landau Levels," Phys. Rev. B, Rapid Communications 66, 161103 (2002).
  • "Inhomogeneous d-Wave Superconducting State of a Doped Mott Insulator,'' Phys. Rev. B 65, 064509 (2002).
  • Inhomogeneous d-Wave Superconducting State of a Doped Mott Insulator," cond-mat/0107004, Phys. Rev. B 65, 064509 (2002).
  • "Electron-Electron Interactions, Quantum Coulomb Gap, and Dynamical Scaling Near Integer Quantum Hall Transitions," cond-mat/0110299, (2001).
  • "Role of Disorder in Half-Filled High Landau Levels," cond-mat/0112233, (2001).
  • "Superconductivity Near Itinerant Ferromagnetic Quantum Criticality," Phys. Rev. Lett. 87, 257001 (2001).
  • "Microscopic Electronic Inhomogeneity in High-Tc Superconductor Bi2Sr2CaCu2O{8+x}," Nature 413, 282 (2001).
  • "Superconductivity Near Itinerant Ferromagnetic Quantum Criticality," Phys. Rev. Lett. 87, 257001 (2001).
  • "On Analytic Structure of One-Dimensional Localization Theory: Re-Examining Mott's Law," Phys. Rev. Lett. 86, 4715 (2001).
  • "Thermodynamic and Tunneling Density of States of the Integer Quantum Hall Critical State," Phys. Rev. B 65, 041302(R) (2001).
  • "Pseudogaps and Quantum Criticality in Underdoped Cuprates," Physica C 341, 207 (2000).
  • "Short-Range Interactions and Scaling at Integer Quantum Hall Transitions," Phys. Rev. B 61, 8326 (2000).
  • "Quantum Disordered Slave Bosons Theory of Underdoped Cuprates," Europhys. Lett. 50, 656 (2000).
  • "Bulk Tunneling Near Integer Quantum Hall Transitions," Phys. Rev. Lett. 83, 828 (1999).
  • "Compressibility of the Two-Dimensional Infinite-U Hubbard Model," Phys. Rev. Lett. 83, 2046 (1999).
  • "In-Plane Magnetic Field Effect on the Transport Properties in Quasi-3D Quantum Hall Structures,'' Phys. Rev. B 60, 8743 (1999).
  • "Instabilities Toward Charge Density Wave and Paired Quantum Hall State of Half-Filled Landau Levels," cond-mat/9911265 (1999).
  • "Conductance Correlations Near Quantum Hall Transitions,'' Phys. Rev. Lett. 81, 2767 (1998).
  • "Quantization and Chiral Edge State Properties in Nearly 3D Quantum Hall Structures," Physica B, 258, 279 (1998).
  • "Nonabelian Chiral Anomaly in the Integer Quantum Hall Effect," Phys. Rev. Lett. 81, 1747 (1998).
  • "Conductance, Conductance Fluctuations, and Level Statistics on the Surface of Multilayer Quantum Hall States," Phys. Rev. B 58, 1967 (1998).
  • "Localization and Metal-Insulator Transition in Multilayer Quantum Hall Structures," Phys. Rev. Lett. 79, 4002 (1997).
  • "Weakly Coupled Antiferromagnetic Quantum Spin Chains,'' Phys. Rev. Lett. 78, 126 (1997).
  • "Critical Conductance and Its Fluctuations at Integer Quantum Hall Plateau Transitions,'' Phys. Rev. Lett. 77, 4426 (1996).
  • "The Effects of Electron-Electron Interactions on the Integer Quantum Hall Transitions,'' Phys. Rev. Lett. 76, 4014 (1996).
  • "Transitions Between Hall Plateaus and the Dimerization Transition of a Hubbard Chain,'' Philos. Mag. Lett. 73, 145 (1996).
  • "Phase Transitions in the Symmetric Kondo Lattice Model in Two and Three Dimensions,'' Phys. Rev. B 51, R15630 (1995).
  • "Scaling theory of the Hall Coefficient Near the Metal-Insulator Transition: A Renormalization Group Approach," Nucl. Phys. B [PS] 415, 589 (1994); Physica B 199&200, 463 (1994).
  • "Transitions Between Hall Plateaus in the Presence of Strong Landau Level Mixing," Phys. Rev. Lett. 72, 2454 (1994).
  • "Spin Triplet Solitons in the One-Dimensional Symmetric Kondo Lattice," Phys. Rev. B 47, 11935 (1993).
  • "Quantum Percolation and the Plateau Transitions in the Quantum Hall Effect,'' Phys. Rev. Lett. 70, 4130 (1993).
  • "Collective Excitations, Photoemission Spectra and Optical Gaps in Strongly Correlated Fermi Systems," Phys. Rev. Lett. 69, 2009 (1992).
  • "Strongly Correlated Fermi Liquid and the Unbroken Symmetry Phase of the High-Tc Superconductors," Int. J. Mod. Phys. B 6 (5&6), 603 (1992).
  • "Critical Behavior of the Hall Coefficient Near the Mobility Edge," Phys. Rev. Lett. 68, 2504 (1992).
  • "The Fermi Liquid Phase of the t-J Model and the Hall Coefficient in High-Tc Superconductors," Phys. Rev. Lett. 68, 2078 (1992).
  • "Collective Excitations and Spectral Function in the Fermi Liquid State of the t-J Model," Phys. Rev. Lett. 67, 2733 (1991).
  • "Pairing in Two Dimensions: A Systematic Approach," Phys. Rev. B 43, 10229 (1991).
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