Signatures of orbital loop currents in the spatially resolved local density of states

Details Signatures of orbital loop currents in the spatially resolved local density of states Signatures of orbital loop currents in the spatially resolved local density of states

2012-03-06

arxiv.org/abs/1203.1181v1

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures

Scientific paper

Polarized neutron scattering measurements have suggested that intra-unit cell antiferromagnetism may be associated with the pseudogap phase. Assuming that loop current order is responsible for the observed magnetism, we calculate some signatures of such circulating currents in the local density of states around a single non-magnetic impurity in a coexistence phase with superconductivity. We find a distinct C4 symmetry breaking near the disorder which is also detectable in the resulting quasi-particle interference patterns.

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