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Zero field muon spin lattice relaxation rate in a Heisenberg ferromagnet at low temperature

P. Dalmas de Reotier·A. Yaouanc
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Abstract

We provide a theoretical framework to compute the zero field muon spin relaxation rate of a Heisenberg ferromagnet at low temperature. We use the linear spin wave approximation. The rate, which is a measure of the spin lattice relaxation induced by the magnetic fluctuations along the easy axis, allows one to estimate the magnon stiffness constant.

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P. Dalmas de Reotier, A. Yaouanc. 1995-10-18. Zero field muon spin lattice relaxation rate in a Heisenberg ferromagnet at low temperature. https://doi.org/10.1103/physrevb.52.9155

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