Spin-mediated dissipation and frequency shifts of a cantilever at milliKelvin temperatures

A. M. J. den Haan, J. J. T. Wagenaar, J. M. de Voogd +2

We measure the dissipation and frequency shift of a magnetically coupled cantilever in the vicinity of a silicon chip, down to $25$ mK. The dissipation and frequency shift originat…