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Long Range Dynamics Related to Magnetic Impurity in the 2D Heisenberg Antiferromagnet

O. P. Sushkov
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Abstract

We consider a magnetic impurity in the two-dimensional Heisenberg antifferomagnet with long range antiferromagnetic order. At low temperature the impurity magnetic susceptibility has a Curie term ($\propto 1/T$) and a logarithmic correction ($\propto \ln(T)$). We calculate the correction and derive related Ward identity for the impurity-spin-wave vertex.

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O. P. Sushkov. 2003-03-02. Long Range Dynamics Related to Magnetic Impurity in the 2D Heisenberg Antiferromagnet. https://doi.org/10.1103/physrevb.68.094426

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