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

Carsten Timm·K. H. Bennemann
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Abstract

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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Carsten Timm, K. H. Bennemann. 2000-04-04. Doping dependence of the Neel temperature in Mott-Hubbard antiferromagnets: Effect of vortices. https://doi.org/10.1103/physrevlett.84.4994

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