The Structure of a Vortex in the t-J Model

Details The Structure of a Vortex in the t-J Model The Structure of a Vortex in the t-J Model

2000-03-13

arxiv.org/abs/cond-mat/0003222v1

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevLett.85.1100

We study the single-vortex solution of the t-J model within resonating-valence-bond (RVB) mean-field theory. We find two types of vortex cores, insulating and metallic, depending on the parameters of the model. The pairing order parameter near both cores have $d_{x^2 -y^2}+i\eta d_{xy}$ symmetry. For some range of $t/J$ the calculated tunneling spectrum of the metallic vortex core agrees qualitatively with the STM tunneling data for BSCCO.

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