Electronic states around a vortex core in high-Tc superconductors based on the t-J model

Abstract

Electronic states around vortex cores in high-Tc superconductors are studied using the two-dimensional t-J model in order to treat the d-wave superconductivity with short coherence length and the antiferromagnetic (AF) instability within the same framework. We focus on the disappearance of the large zero-energy peak in the local density of states observed in high-Tc superconductors. When the system is near the optimum doping, we find that the local AF correlation develops inside the vortex cores. However, the detailed doping dependence calculations confirm that the experimentally observed reduction of the zero-energy peak is more reasonably attributed to the smallness of the core size rather than to the AF correlation developed inside the core. The correlation between the spatial dependence of the core states and the core radius is discussed.

4 pages, 4 figures

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Cited by in corpus (21)

• Scanning tunneling spectroscopy of high-temperature superconductors
• A model of phase fluctuations in a lattice d-wave superconductor: application to the Cooper pair charge-density-wave in underdoped cuprates
• Two routes to magnetic order by disorder in underdoped cuprates
• Staggered flux vortices and the superconducting transition in the layered cuprates
• Revisiting the vortex-core tunnelling spectroscopy in YBa${}_2$Cu${}_3$O${}_{7-\delta }$
• Dirac-Bogoliubov-deGennes quasiparticles in a vortex lattice
• High-Resolution Scanning Tunneling Spectroscopy of Vortex Cores in Inhomogeneous Electronic States of Bi2Sr2CaCu2Ox
• Staggered Flux State in Two-Dimensional Hubbard Models
• Fate of disorder-induced inhomogeneities in strongly correlated d-wave superconductors
• Quasiparticle structure in antiferromagnetism around the vortex and nuclear magnetic relaxation time
• Electronic states near a quantum fluctuating point vortex in a d-wave superconductor: Dirac fermion theory
• Intertwined Orders and Electronic Structure in Superconducting Vortex Halos
• Vortex-core spectroscopy of $d$-wave cuprate high-temperature superconductors
• Enigma of the vortex state in a strongly correlated d-wave superconductor
• Vortex structure in a $d$-wave superconductor obtained by a confinement transition from the pseudogap metal
• Bogoliubov quasiparticles coupled to the antiferromagnetic spin mode in a vortex core
• Low energy theory of a single vortex and electronic quasiparticles in a d-wave superconductor
• Charge modulation in the background of depleted superconductivity inside vortices
• Local breaking of the spin degeneracy in the vortex states of Ising superconductors: Induced antiphase ferromagnetic order
• Strengthened correlations near [110] edges of $d$-wave superconductors in the t-J model with the Gutzwiller approximation
• Anomalous dispersion relations in the staggered flux state