256 citations · 654 across the 12 of their papers we have counts for
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High-Energy Damping by Particle-Hole Excitations in the Spin-Wave Spectrum of Iron-Based Superconductors
Zhidong Leong, Wei-Cheng Lee, Weicheng Lv +1
Using a degenerate double-exchange model, we investigate the spin excitation spectra of iron pnictides. The model consists of local spin moments on each Fe site, as well as itinera…
Impact of Dynamic Orbital Correlations on Magnetic Excitations in the Normal State of Iron-Based Superconductors
Wei-Cheng Lee, Weicheng Lv, J. M. Tranquada +1
We show here that orbital degrees of freedom produce a distinct signature in the magnetic excitation spectrum of iron-based superconductors above the magnetic ordering temperature.…
Orbitally and Magnetically Induced Anisotropy in Iron-based Superconductors
Weicheng Lv, Philip Phillips
Recent experimental developments in the iron pnictides have unambiguously demonstrated the existence of in-plane electronic anisotropy in the absence of the long-range magnetic ord…
Vacancy Driven Orbital and Magnetic Order in (K,Tl,Cs)FeSe
Weicheng Lv, Wei-Cheng Lee, Philip Phillips
We investigate the effects of the Fe vacancy ordering on the orbital and magnetic order in (K,Tl,Cs)FeSe using a three-orbital () t…
Orbital Ordering and Unfrustrated Magnetism from Degenerate Double Exchange in the Iron Pnictides
Weicheng Lv, Frank Krüger, Philip Phillips
The magnetic excitations of the iron pnictides are explained within a degenerate double-exchange model. The local-moment spins are coupled by superexchanges and between…
Orbital-Ordering Induces Structural Phase Transition and the Resistivity Anomaly in Iron Pnictides
Weicheng Lv, Jiansheng Wu, Philip Phillips
We attribute the structural phase transition (SPT) in the parent compounds of the iron pnictides to orbital ordering. Due to the anisotropy of the and orbitals in…