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Coexistence between superconducting and spin density wave states in iron-based superconductors: Ginzburg-Landau analysis
M. G. Vavilov, A. V. Chubukov, A. B. Vorontsov
We consider the interplay between superconducting (SC) and commensurate spin-density-wave (SDW) orders in iron-pnictides by analyzing a multiple order Ginzburg-Landau free energy.…
Magnetic degeneracy and hidden metallicity of the spin density wave state in ferropnictides
Ilya Eremin, Andrey V. Chubukov
We analyze spin density wave (SDW) order in iron-based superconductors and electronic structure in the SDW phase. We consider an itinerant model for Fe-pnictides with two hole band…
Fermi liquid near Pomeranchuk quantum criticality
Dmitrii L. Maslov, Andrey V. Chubukov
We analyze the behavior of an itinerant Fermi system near a charge nematic(n=2) Pomeranchuk instability in terms of the Landau Fermi liquid (FL) theory. The main object of our stud…
Reduced effect of impurities on the universal pairing scale in the cuprates
A. B. Vorontsov, Ar. Abanov, M. G. Vavilov +1
We consider the effect of non-magnetic impurities on the onset temperature for the wave pairing in spin-fluctuation scenario for the cuprates. We analyze intermediate cou…
Spin conservation and Fermi liquid near a ferromagnetic quantum critical point
Andrey V. Chubukov, Dmitrii L. Maslov
We propose a new low-energy theory for itinerant fermions near a ferromagnetic quantum critical point. We show that the full low-energy model includes, in addition to conventional…
Coexistence of superconductivity and a spin density wave in pnictides: Gap symmetry and nodal lines
D. Parker, M. G. Vavilov, A. V. Chubukov +1
We investigate the effect of a spin-density wave (SDW) on superconductivity in Fe-based superconductors. We show that, contrary to the common wisdom, no nodes open at the…