Structure of a vortex in the t-J model |
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Authors: | Han Lee |
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Institution: | Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA. |
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Abstract: | We study the single-vortex solution of the t-J model within resonating-valence-bond 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))+ietad(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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