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

TY - JOUR

T1 - Signatures of orbital loop currents in the spatially resolved local density of states

AU - Nielsen, William Hvidtfelt Padkær

AU - Andersen, Brian Møller

AU - Atkinson, W. A.

PY - 2012/8/10

Y1 - 2012/8/10

N2 - 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 nonmagnetic impurity in a coexistence phase with superconductivity. We find a distinct C 4 symmetry breaking near the disorder, which is also detectable in the resulting quasiparticle interference patterns.

AB - 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 nonmagnetic impurity in a coexistence phase with superconductivity. We find a distinct C 4 symmetry breaking near the disorder, which is also detectable in the resulting quasiparticle interference patterns.

U2 - 10.1103/PhysRevB.86.054510

DO - 10.1103/PhysRevB.86.054510

M3 - Journal article

SN - 2469-9950

VL - 86

SP - 054510

JO - Physical Review B

JF - Physical Review B

IS - 5

ER -