Influence of rare regions on quantum phase transition in antiferromagnets with hidden degrees of freedom

Y. N. Skryabin; A. V. Chukin; A. V. Shchanov

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Influence of rare regions on quantum phase transition in antiferromagnets with hidden degrees of freedom

Y. N. Skryabin·A. V. Chukin·A. V. Shchanov

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Abstract

The effects of rare regions on the critical properties of quantum antiferromagnets with hidden degrees of freedom within the renormalization group is discussed. It is shown that for ``constrained'' systems the stability range on the phase diagram remains the same as in the mean-field theory while for ``unconstrained'' systems the stability range is effectively decreased.

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Y. N. Skryabin, A. V. Chukin, A. V. Shchanov. 2000-01-15. Influence of rare regions on quantum phase transition in antiferromagnets with hidden degrees of freedom. https://arxiv.org/abs/cond-mat/0001214

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