293 citations · 1.3k across the 27 of their papers we have counts for
27 papers
Fragility of the nematic spin liquid induced by diagonal couplings in the square-lattice SU(3) model
Xiao-Tian Zhang, Wen-Jun Hu, Elbio Dagotto +1
We present a large-scale density matrix renormalization group (DMRG) study of the spin- SU(3) bilinear-biquadratic model on the square lattice, which was suggested to host a nem…
Scalable variational Monte Carlo with graph neural ansatz
Li Yang, Wenjun Hu, Li Li
Deep neural networks have been shown as a potentially powerful ansatz in variational Monte Carlo for solving quantum many-body problems. We propose two improvements in this directi…
Origin of the Magnetic and Orbital ordering in -SrCrO
Bradraj Pandey, Yang Zhang, Nitin Kaushal +5
Motivated by recent experimental progress in transition metal oxides with the KNiF structure, we investigate the magnetic and orbital ordering in -SrCrO. Using f…
Similarities and differences between nickelate and cuprate films grown on a SrTiO substrate
Yang Zhang, Ling-Fang Lin, Wenjun Hu +3
The recent discovery of superconductivity in Sr-doped NdNiO films grown on SrTiO started a novel field within unconventional superconductivity. To understand the similariti…
Density Matrix Renormalization Group Study of Nematicity in Two Dimensions: Application to a Spin- Bilinear-Biquadratic Model on the Square Lattice
Wen-Jun Hu, Shou-Shu Gong, Hsin-Hua Lai +2
Nematic order is an exotic property observed in several strongly correlated systems, such as the iron-based superconductors. Using large-scale density matrix renormalization group…
Deep Learning-Enhanced Variational Monte Carlo Method for Quantum Many-Body Physics
Li Yang, Zhaoqi Leng, Guangyuan Yu +3
Artificial neural networks have been successfully incorporated into variational Monte Carlo method (VMC) to study quantum many-body systems. However, there have been few systematic…
Nematic and Antiferromagnetic Quantum Criticality in a Multi-Orbital Hubbard Model for Iron Pnictides
Wen-Jun Hu, Haoyu Hu, Rong Yu +4
The extent to which quantum criticality drives the physics of iron pnictides is a central question in the field. Earlier theoretical considerations were based on an effective field…
Broken mirror symmetry, incommensurate spin correlations, and nematic order in iron pnictides
Yiming Wang, Wenjun Hu, Rong Yu +1
Motivated by growing indications for a distinct form of nematic correlations in the extremely hole doped iron pnictide compounds FeAs (=K,Rb,Cs), we consider spin-dri…
Fractionalized Excitations Revealed by Entanglement Entropy
Wen-Jun Hu, Yi Zhang, Andriy H. Nevidomskyy +3
Fractionalized excitations develop in many unusual many-body states such as quantum spin liquids, disordered phases that cannot be described using any local order parameter. Becaus…
Kondo Destruction and Multipolar Order-- Implications for Heavy Fermion Quantum Criticality
Hsin-Hua Lai, Emilian M. Nica, Wen-Jun Hu +3
Quantum criticality beyond the Landau paradigm represents a fundamental problem in condensed matter and statistical physics. Heavy fermion systems with multipolar degrees of freedo…
Spin-isotropic continuum of spin excitations in antiferromagnetically ordered FeTe
Yu Song, Xingye Lu, L. -P. Regnault +5
Unconventional superconductivity typically emerges in the presence of quasi-degenerate ground states, and the associated intense fluctuations are likely responsible for generating…
Nematic Spin Liquid Phase in a Frustrated Spin-1 System on the Square Lattice
Wen-Jun Hu, Shou-Shu Gong, Hsin-Hua Lai +3
Frustration in quantum spin systems promote a variety of novel quantum phases. An important example is the frustrated spin- model on the square lattice with the nearest-neighbor…
Frustrated magnetism and bicollinear antiferromagnetic order in FeTe
Hsin-Hua Lai, Shou-Shu Gong, Wen-Jun Hu +1
Iron chalcogenides display a rich variety of electronic orders in their phase diagram. A particularly enigmatic case is FeTe, a metal which possesses co-existing hole and electron…
Unified Spin Model for Magnetic Excitations in Iron Chalcogenides
Patricia Bilbao Ergueta, Wen-Jun Hu, Andriy H. Nevidomskyy
Recent inelastic neutron scattering (INS) measurements on FeSe and Fe(TeSe), have sparked intense debate over the nature of the ground state in these materials. Here we…
Quantum Transitions of Nematic Phases in a Spin- Bilinear-Biquadratic Model and Their Implications for FeSe
Wen-Jun Hu, Hsin-Hua Lai, Shou-Shu Gong +3
Since its discovery, iron-based superconductivity has been known to develop near an antiferromagnetic order, but this paradigm fails in the iron chalcogenide FeSe, whose single-lay…
Variational Monte Carlo study of chiral spin liquid in quantum antiferromagnet on the triangular lattice
Wen-Jun Hu, Shou-Shu Gong, D. N. Sheng
By using Gutzwiller projected fermionic wave functions and variational Monte Carlo technique, we study the spin- Heisenberg model with the first-neighbor (), second-neigh…
Antiferroquadrupolar order and rotational symmetry breaking in a generalized bilinear-biquadratic model on a square lattice
Hsin-Hua Lai, Wen-Jun Hu, Emilian M. Nica +2
The magnetic and nematic properties of the iron chalcogenides have recently been the subject of intense interest. Motivated by the proposed antiferroquadrupolar and Ising-nematic o…
Spin Ferroquadrupolar Order in the Nematic Phase of FeSe
Zhentao Wang, Wen-Jun Hu, Andriy H. Nevidomskyy
We provide evidence that spin ferroquadrupolar (FQ) order is the likely ground state in the nonmagnetic nematic phase of stoichiometric FeSe. By studying the variational mean-field…
Spin liquid nature in the Heisenberg - triangular antiferromagnet
Yasir Iqbal, Wen-Jun Hu, Ronny Thomale +2
We investigate the spin- Heisenberg model on the triangular lattice in the presence of nearest-neighbor and next-nearest-neighbor antiferromagnetic couplin…
Variational Monte Carlo study of gapless spin liquid in the spin- XXZ antiferromagnetic model on the kagome lattice
Wen-Jun Hu, Shou-Shu Gong, Federico Becca +1
By using the variational Monte Carlo technique, we study the spin- XXZ antiferromagnetic model (with easy-plane anisotropy) on the kagome lattice. A class of Gutzwiller projec…
Competing Spin Liquid States in the Spin- Heisenberg Model On Triangular Lattice
Wen-Jun Hu, Shou-Shu Gong, Wei Zhu +1
We study the spin- Heisenberg model on the triangular lattice with the antiferromagnetic first () and second () nearest-neighbor interactions using density matrix re…
Lanczos steps to improve variational wave functions
Federico Becca, Wen-Jun Hu, Yasir Iqbal +3
Gutzwiller-projected fermionic states can be efficiently implemented within quantum Monte Carlo calculations to define extremely accurate variational wave functions for Heisenberg…
Variational Monte Carlo study of chiral spin liquid in the extended Heisenberg model on the Kagome lattice
Wen-Jun Hu, Wei Zhu, Yi Zhang +3
We investigate the extended Heisenberg model on the Kagome lattice by using Gutzwiller projected fermionic states and the variational Monte Carlo technique. In particular, when bot…
Direct evidence for a gapless spin liquid by frustrating Néel antiferromagnetism
Wen-Jun Hu, Federico Becca, Alberto Parola +1
By direct calculations of the spin gap in the frustrated Heisenberg model on the square lattice, with nearest- () and next-nearest-neighbor () super-exchange couplings, w…