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The Structure of a Vortex in the t-J Model

Jung Hoon Han·Dung-Hai Lee
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Abstract

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 $d_{x^2 -y^2}+iηd_{xy}$ 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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Jung Hoon Han, Dung-Hai Lee. 2000-03-13. The Structure of a Vortex in the t-J Model. https://doi.org/10.1103/physrevlett.85.1100

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