Correlation and disorder-enhanced nematic spin response in superconductors with weakly broken rotational symmetry

Abstract

Recent experimental and theoretical studies have highlighted the possible role of a electronic nematic liquid in underdoped cuprate superconductors. We calculate, within a model of d-wave superconductor with Hubbard correlations, the spin susceptibility in the case of a small explicitly broken rotational symmetry of the underlying lattice. We then exhibit how the induced spin response asymmetry is strongly enhanced by correlations as one approaches the instability to stripe order. In the disorder-induced stripe phase, impurities become spin nematogens with a C_2 symmetric impurity resonance state, and the disorder-averaged spin susceptibility remains only C_2 symmetric at low energies, similar to recent data from neutron scattering experiments on underdoped YBCO.

6 pages, 5 figures

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Cited by in corpus (4)

• Electronic in-plane symmetry breaking at field-tuned quantum criticality in CeRhIn5
• Non-monotonic pressure dependence of high-field nematicity and magnetism in CeRhIn${}_5$
• Superconductivity in pressurized CeRhGe3 and related non-centrosymmetric compounds
• Vortexlike excitations in the heavy-fermion superconductor CeIrIn${}_5$