Phys. Rev. Lett. 85, 1100–1103 (2000)Structure of a Vortex in the t-J ModelReceived 16 March 2000; published in the issue dated 31 July 2000 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 dx2-y2+iηdxy 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. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.1100
DOI:
10.1103/PhysRevLett.85.1100
PACS:
74.25.Jb, 71.27.+a, 79.60.-i
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