Self-consistent gauge-invariant theory of the in-plane infrared response of high-Tc cuprate superconductors
| Authors | |
|---|---|
| Year of publication | 2007 |
| Type | Article in Periodical |
| Magazine / Source | Physical Review B |
| MU Faculty or unit | |
| Citation | |
| Doi | http://dx.doi.org/10.1103/PhysRevB.76.214502 |
| Field | Solid matter physics and magnetism |
| Keywords | cuprate superconductors; optical response; spin-fermion model; vertex corrections; gauge-invariance |
| Description | We report on results of our theoretical study of the in-plane infrared conductivity of the high-Tc cuprate superconductors using the model where charged planar quasiparticles are coupled to spin fluctuations. The computations include both the renormalization of the quasiparticles and the corresponding modification of the current-current vertex function (vertex correction), which ensures gauge invariance of the theory and local charge conservation in the system. |
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