391 citations · 1.8k across the 58 of their papers we have counts for
29 papers · 1 filter
Verwey transition as evolution from electronic nematicity to trimerons via electron-phonon coupling
Wei Wang, Jun Li, Zhixiu Liang +13
Understanding the driving mechanisms behind metal-insulator transitions (MITs) is a critical step towards controlling material's properties. Since the proposal of charge-order-indu…
Dimerization and spin-decoupling in two-leg Heisenberg ladder with frustrated trimer rungs
Andreas Weichselbaum, Weiguo Yin, Alexei M. Tsvelik
We study the antiferromagnetic spin-half Heisenberg ladder in the presence of an additional frustrating rung spin which is motivated and relevant also for the description of real t…
Probing the pathway of an ultrafast structural phase transition to illuminate the transition mechanism in Cu2S
Junjie Li, Kai Sun, Jun Li +17
Disentangling the primary order parameter from secondary order parameters in phase transitions is critical to the interpretation of the transition mechanisms in strongly correlated…
Photoinduced Dirac semimetal in ZrTe5
T. Konstantinova, L. Wu, W. -G. Yin +6
Novel phases of matter with unique properties that emerge from quantum and topological protection present an important thrust of modern research. Of particular interest is to engin…
Dual Orbital Degeneracy Lifting in a Strongly Correlated Electron System
R. J. Koch, R. Sinclair, M. T. McDonnell +8
The local structure of NaTiSiO is examined across its Ti-dimerization orbital-assisted Peierls transition at 210 K. An atomic pair distribution function approach eviden…
Magnetic mixed valent semimetal EuZnSb with Dirac states in the band structure
Aifeng Wang, Sviatoslav Baranets, Yu Liu +7
We report discovery of new antiferromagnetic semimetal EuZnSb, obtained and studied in the form of single crystals. Electric resistivity, magnetic susceptibility and heat capac…
Three-dimensional Ising Ferrimagnetism of Cr-Fe-Cr trimers in FeCr2Te4
Yu Liu, R. J. Koch, Zhixiang Hu +7
We carried out a comprehensive study of magnetic critical behavior in single crystals of ternary chalcogenide FeCrTe that undergoes a ferrimagnetic transition below $…
Quantum liquid with strong orbital fluctuations: the case of a pyroxene family
A. Feiguin, A. M. Tsvelik, Weiguo Yin +1
We discuss quasi one-dimensional magnetic Mott insulators of the pyroxene family where spin and orbital degrees of freedom remain tightly bound. We analyze their excitation spectru…
Phase Competition and Anomalous Thermal Evolution in High-Temperature Superconductors
Zuo-Dong Yu, Yuan Zhou, Wei-Guo Yin +2
The interplay of competing orders is relevant to high-temperature superconductivity known to emerge upon suppression of a parent antiferromagnetic order typically via charge doping…
Giant Spin Gap and Magnon Localization in the Disordered Heisenberg Antiferromagnet Sr2Ir1-xRuxO4
Yue Cao, Xuerong Liu, Wenhu Xu +15
We study the evolution of magnetic excitations in the disordered two-dimensional antiferromagnet Sr2Ir1-xRuxO4. A gigantic magnetic gap greater than 40 meV opens at x = 0.27 and in…
Spin Frustration and a `Half Fire, Half Ice' Critical Point from Nonuniform -Factors
Wei-Guo Yin, Christopher R. Roth, Alexei M. Tsvelik
It is demonstrated that novel spin frustration can be induced in ferromagnets with nonuniform Landé -factors. The frustrated state is characterized by a mutual interplay of typi…
CaMnAl: itinerant Mn magnetism on the verge of ferromagnetic order
Lucia Steinke, Jack W. Simonson, W. -G. Yin +5
We report the discovery of \CMA, a metal with strong magnetic anisotropy and moderate electronic correlations. Magnetization measurements find a Curie-Weiss moment of $0.83\,\mathr…
Charge-Stripe Order in a Parent Compound of Iron-based Superconductors
Wei Li, Wei-Guo Yin, Lili Wang +4
Charge ordering is one of the most intriguing and extensively studied phenomena in correlated electronic materials because of its strong impact on electron transport properties inc…
Unveiling the microscopic origin of the electronic smectic-nematic phase transition in La1/3Ca2/3MnO3
Jing Tao, Kai Sun, Weiguo Yin +3
Electronic-liquid-crystal phases, in which part of the spatial symmetries are broken spontaneously, are considered to play a vital role in interpreting the structure-property relat…
Structural, Magnetic, and Electrical Properties of Li2Ir1-xRuxO3
Hechang Lei, Wei-Guo Yin, Zhicheng Zhong +1
The crystal structure, resistivity, and magnetic susceptibility of the Li2Ir1-xRuxO3 (x = 0-1) polycrystals have been investigated. We found that the parent antiferromagnetic phase…
Electronic Structure Reconstruction across the Antiferromagnetic Transition in TaFeTe Spin Ladder
M. Xu, Li-Min Wang, R. Peng +19
With angle-resolved photoemission spectroscopy, we studied the electronic structure of TaFeTe, which is a two-leg spin ladder compound with a novel antiferromagnetic g…
Evidence for Fluctuating Charge Stripes far above the Charge-Ordering Transition in La Sr NiO
A. M. Milinda Abeykoon, Emil S. Božin, Wei-Guo Yin +4
The temperature evolution of structural effects associated with charge (CO) and spin order (SO) in LaSrNiO has been investigated using neutron powder diffra…
Ferromagnetic Exchange Anisotropy from Antiferromagnetic Superexchange in the Mixed 3d-5d Transition-Metal Compound Sr3CuIrO6
Wei-Guo Yin, X. Liu, A. M. Tsvelik +9
We report a combined experimental and theoretical study of the unusual ferromagnetism in the one-dimensional copper-iridium oxide SrCuIrO. Utilizing Ir edge resonant…
Testing the validity of the strong spin-orbit-coupling limit for octahedrally coordinated iridates in a model system SrCuIrO
X. Liu, Vamshi M. Katukuri, L. Hozoi +12
The electronic structure of SrCuIrO, a model system for the 5d Ir ion in an octahedral environment, is studied through a combination of resonant inelastic x-ray scattering…
Flavor-twisted boundary condition for simulations of quantum many-body systems
Wei-Guo Yin, Wei Ku
We present an approximative simulation method for quantum many-body systems based on coarse graining the space of the momentum transferred between interacting particles, which lead…
Charge Ordering in Half-Doped Manganites: Weak Charge Disproportion and Leading Mechanisms
Dmitri Volja, Wei-Guo Yin, Wei Ku
The apparent contradiction between the recently observed weak charge disproportion and the traditional Mn/Mn picture of the charge-orbital orders in half-doped mangan…
Tuning Hole Mobility, Concentration, and Repulsion in High- Cuprates via Apical Atoms
Wei-Guo Yin, Wei Ku
Using a newly developed first-principles Wannier-states approach that takes into account large on-site Coulomb repulsion, we derive the effective low-energy interacting Hamiltonian…
Orbital ordering in LaMnO: Electron-electron versus electron-lattice interactions
Wei-Guo Yin, Dmitri Volja, Wei Ku
The relative importance of electron-lattice (e-l) and electron-electron (e-e) interactions in ordering orbitals in LaMnO is systematically examined within the LDA+ approxima…
Coexistence of gapless excitations and commensurate charge-density wave in the 2H-transition metal dichalcogenides
Ryan Barnett, Anatoli Polkovnikov, Eugene Demler +2
An unexpected feature common to 2H-transition metal dichalcogenides (2H-TMDs) is revealed with first-principles Wannier functions analysis of the electronic structure of the protot…