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

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

2003-03-02

arxiv.org/abs/cond-mat/0303016v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 6 figures

Scientific paper

10.1103/PhysRevB.68.094426

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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