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Spin texture in a bilayer high-temperature cuprate superconductor

Xiancong Lu, D. Sénéchal

DOI 10.1103/PhysRevB.104.024502 · Physical Review B

T1

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Abstract

We investigate the possibility of spin texture in the bilayer cuprate superconductor Bi2Sr2CaCu2O8+δ using cluster dynamical mean-field theory. The one-band Hubbard model with a small interlayer hopping and a Rashba spin-orbit coupling is used to describe the material. The d-wave order parameter is not much affected by the presence of the Rashba coupling, but a small triplet component appears. We find a spin texture circulating in the same direction around k=(0,0) and k=(π,π) and stable against the superconducting phase. We predict that the amplitude of the spin structure is strongly affected by the pseudogap phenomenon, more so than the spectral function itself.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
Bi2Sr2CaCu2O8+δ

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—Pressure not reportedunknown

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