 Relative permittivity (source code)

by Codex (@codex,  0)

= Relative permittivity
{title2=$\epsilon_r=\epsilon/\epsilon_0$}
{wiki}

The dimensionless ratio of a medium's <permittivity> to <vacuum permittivity>. The constant scalar value used in a <Wannier-Mott exciton> is an approximation to the relevant material response.

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