101 citations · 426 across the 15 of their papers we have counts for
15 papers
Phase diagram of a pseudogap Anderson model with application to graphene
Hung T. Dang, Hoa T. M. Nghiem
The Anderson model of an -wave single-orbital correlated impurity placed on a noninteracting honeycomb lattice, a simplified model for studying an impurity on graphene, is used…
Time-dependent spectral functions of the Anderson impurity model in response to a quench with application to time-resolved photoemission spectroscopy
H. T. M. Nghiem, H. T. Dang, T. A. Costi
We investigate several definitions of the time-dependent spectral function of the Anderson impurity model following a quench and within the time-dependent numerical renorm…
Correlation length in a generalized two-dimensional XY model
Duong Xuan Nui, Le Tuan, Nguyen Duc Trung Kien +3
The measurements of the magnetic and nematic correlation lengths in a generalization of the two dimensional XY model on the square lattice are presented using classical Monte Carlo…
Ferromagnetism and correlation strength in cubic barium ruthenate in comparison to strontium and calcium ruthenate: a dynamical mean field study
Qiang Han, Hung T. Dang, A. J. Millis
We present density functional plus dynamical mean field studies of cubic BaRuO using interaction parameters previously found to be appropriate for the related materials CaRuO$_…
Strong correlation effects in theoretical STM studies of magnetic adatoms
Hung T. Dang, Manuel dos Santos Dias, Ansgar Liebsch +1
We present a theoretical study for the scanning tunneling microscopy (STM) spectra of surface-supported magnetic nanostructures, incorporating strong correlation effects. As concre…
Electronic correlations, magnetism and Hund's rule coupling in the ruthenium perovskites SrRuO and CaRuO
Hung T. Dang, Jernej Mravlje, Antoine Georges +1
A comparative density functional plus dynamical mean field theory study of the pseudocubic ruthenate materials CaRuO and SrRuO is presented. Phase diagrams are determined f…
Band Structure and Terahertz Optical Conductivity of Transition Metal Oxides: Theory and Application to CaRuO
Hung T. Dang, Jernej Mravlje, Antoine Georges +1
Density functional plus dynamical mean field calculations are used to show that in transition metal oxides, rotational and tilting (GdFeO-type) distortions of the ideal cubic p…
Mott transition in the triangular lattice Hubbard model: a dynamical cluster approximation study
Hung T. Dang, Xiao Yan Xu, Kuang-Shing Chen +2
Based on dynamical cluster approximation (DCA) quantum Monte Carlo simulations, we study the interaction-driven Mott metal-insulator transition (MIT) in the half-filled Hubbard mod…
Density functional plus dynamical mean field theory of the metal-insulator transition in early transition metal oxides
Hung T. Dang, Xinyuan Ai, Andrew J. Millis +1
The combination of density functional theory and single-site dynamical mean-field theory, using both Hartree and full continuous-time quantum Monte Carlo impurity solvers, is used…
Covalency and the metal-insulator transition in titanate and vanadate perovskites
Hung T. Dang, Andrew J. Millis, Chris A. Marianetti
A combination of density functional and dynamical mean-field theory is applied to the perovskites SrVO, LaTiO and LaVO. We show that DFT+DMFT in conjunction with the st…
Designing ferromagnetism in vanadium-oxide based superlattices
Hung T. Dang, Andrew J. Millis
Motivated by recent reports (Phys. Rev. B\textbf{80}, 241102) of room-temperature ferromagnetism in vanadium-oxide based superlattices, a single-site dynamical mean field study of…
Theory of ferromagnetism in vanadium-oxide based perovskites
Hung T. Dang, Andrew J. Millis
The conditions under which ferromagnetism may occur in transition metal oxides with partially filled shells such as vanadium-based perovskites are studied using a combinat…
High-frequency asymptotic behavior of self-energies in quantum impurity models
Xin Wang, Hung The Dang, Andrew J. Millis
We present explicit expressions for the high-frequency asymptotic behavior of electron self-energy of general quantum impurity models, which may be useful for improving the converg…
d_{3z^2-r^2} Orbital in high-Tc cuprates: Excitonic spectrum, metal-insulator phase diagram, optical conductivity and orbital character of doped holes
Xin Wang, Hung The Dang, Andrew J. Millis
The single-site dynamical mean-field approximation is used to solve a model of high-Tc cuprate superconductors which includes both d_{x^2-y^2} and d_{3z^2-r^2} orbitals on the Cu a…
Theory of charged impurities in correlated electron materials: Application to muon spectroscopy of high-Tc superconductors
Hung T. Dang, Emanuel Gull, Andrew J. Millis
Single-site and cluster dynamical mean-field methods are used to estimate the response of a doped Mott insulator to a charged impurity. The effect of correlations on the Thomas-Fer…