Renormalization Group Theory of Nematic Ordering in \(d\)-Wave Superconductors
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CitationHuh, Yejin, and Subir Sachdev. 2008. Renormalization group theory of nematic ordering in \(d\)-wave superconductors. Physical Review B 78(6): 064512.
AbstractWe examine the quantum theory of the spontaneous breaking of lattice rotation symmetry in \(d\)-wave superconductors on the square lattice. This is described by a field theory of an Ising nematic order parameter coupled to the gapless fermionic quasiparticles. We determine the structure of the renormalization group to all orders in a \(1/N_f\) expansion, where \(N_f\) is the number of fermion spin components. Asymptotically exact results are obtained for the quantum critical theory in which, as in the large \(N_f\) theory, the nematic order has a large anomalous dimension, and the fermion spectral functions are highly anisotropic.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:7764495
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