Longitudinal muon spin relaxation in high purity aluminum and silver

TL;DR

This study measures muon spin relaxation in high purity aluminum and silver at room temperature, revealing exponential relaxation rates that inform understanding of magnetic interactions in these metals.

Contribution

It provides precise measurements of muon spin relaxation rates in high purity aluminum and silver, contributing new quantitative data to the field.

Findings

Relaxation rate in aluminum: 1.3 ± 0.2 (stat) ± 0.3 (syst) μs^{-1}

Relaxation rate in silver: 1.0 ± 0.2 (stat) ± 0.2 (syst) μs^{-1}

Relaxation follows a single exponential decay for times >10 ns

Abstract

The time dependence of muon spin relaxation has been measured in high purity aluminum and silver samples in a longitudinal 2 T magnetic field at room temperature, using time-differential \musr. For times greater than 10 ns, the shape fits well to a single exponential with relaxation rates of $\lambda_{\textrm{Al}} = 1.3 \pm 0.2\,(\textrm{stat.}) \pm 0.3\,(\textrm{syst.})\,\pms$ and $\lambda_{\textrm{Ag}} = 1.0 \pm 0.2\,(\textrm{stat.}) \pm 0.2\,(\textrm{syst.})\,\pms$.