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Pairing strengths for a two orbital model of the Fe-pnictides
Xiao-Liang Qi, S. Raghu, Chao-Xing Liu +2
Using an RPA approximation, we have calculated the strengths of the singlet and triplet pairing interactions which arise from the exchange of spin and orbital fluctuations for a 2-…
A minimal two-band model for the superconducting Fe-pnictides
S. Raghu, Xiao-Liang Qi, Chao-Xing Liu +2
Following the discovery of the Fe-pnictide superconductors, LDA band structure calculations showed that the dominant contributions to the spectral weight near the Fermi energy came…
Lower Pseudogap Phase: A Spin/Vortex Liquid State
Zheng-Yu Weng, Xiao-Liang Qi
The pseudogap phase is considered as a new state of matter in the phase string model of the doped Mott insulator, which is composed of two distinct regimes known as upper and lower…
Microscopic origin of local moments in a zinc-doped high- superconductor
X. L. Qi, Z. Y. Weng
The formation of a local moment around a zinc impurity in the high- cuprate superconductors is studied within the framework of the bosonic resonating-valence-bond (RVB) desc…