Staggered flux vortices and the superconducting transition in the layered cuprates

Abstract

We propose an effective model for the superconducting transition in the high-T_c cuprates motivated by the SU(2) gauge theory approach. In addition to variations of the superconducting phase we allow for local admixture of staggered flux order. This leads to an unbinding transition of vortices with staggered flux core that are energetically preferable to conventional vortices. Based on parameter estimates for the two-dimensional t-J model we argue that the staggered flux vortices provide a way to understand a phase with a moderate density of mobile vortices over a large temperature range above T_c that yet exhibits otherwise normal transport properties. This picture is consistent with the large Nernst signal observed in this region.

arXiv comment4 pages, 3 figures

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• Staggered flux fluctuations and the quasiparticle scattering rate in the SU(2) gauge theory of the t-J model
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Cited by in corpus (19)

• The Nernst effect in high-$T_c$ superconductors
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• Energy gaps in the failed high-Tc superconductor La1.875Ba0.125CuO4
• Nernst effect and diamagnetism in phase fluctuating superconductors
• Nernst effect and disorder in the normal state of high-T_{c} cuprates
• Strongly nonlinear magnetization above $T_c$ in $\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_2\mathrm{CaC}{\mathrm{u}}_2{\mathrm{O}}_{8+\delta }$
• Nernst effect, quasiparticles, and d-density waves in cuprates
• Critical microwave-conductivity fluctuations across the phase diagram of superconducting La${}_{2-x}$Sr${}_x$CuO${}_4$ thin films
• Normal State Nernst Effect in Electron-doped Pr2-xCexCuO4: Superconducting Fluctuations and Two-band Transport
• Magnetization, Nernst effect and vorticity in the cuprates
• Lower Pseudogap Phase: A Spin/Vortex Liquid State
• Enhancement of superconducting fluctuation under the coexistence of a competing pseudogap state in Bi2Sr2-xRxCuOy
• On the interpretation of the Nernst effect measurements in the cuprates
• Superconductivity with and without glue and the role of the double-occupancy forbidding constraint in the t-J-V model
• Change of quasiparticle dispersion in crossing T_c in the underdoped cuprates
• The Role of the Core Energy in the Vortex Nernst Effect
• SU(2) approach to the pseudogap phase of high-temperature superconductors: electronic spectral functions
• Origin of the pseudogap and its influence on superconducting state
• Enhanced charge density wave with mobile superconducting vortices in La${}_{1.885}$Sr${}_{0.115}$CuO${}_4$