Doping dependence of the Neel temperature in Mott-Hubbard antiferromagnets: Effect of vortices

Details Doping dependence of the Neel temperature in Mott-Hubbard antiferromagnets: Effect of vortices Doping dependence of the Neel temperature in Mott-Hubbard antiferromagnets: Effect of vortices

1999-10-13

arxiv.org/abs/cond-mat/9910194v2

Phys. Rev. Lett. 84, 4994 (2000)

Physics

Condensed Matter

4 pages with 3 figures included, minor revisions, to be published in PRL

Scientific paper

10.1103/PhysRevLett.84.4994

The rapid destruction of long-range antiferromagnetic order upon doping of Mott-Hubbard antiferromagnetic insulators is studied within a generalized Berezinskii-Kosterlitz-Thouless renormalization group theory in accordance with recent calculations suggesting that holes dress with vortices. We calculate the doping-dependent Neel temperature in good agreement with experiments for high-Tc cuprates. Interestingly, the critical doping where long-range order vanishes at zero temperature is predicted to be xc ~ 0.02, independently of any energy scales of the system.

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