Relaxation of the Wall-Pinned Magnetization Ringing Mode in SuperfluidHe3-B

Abstract

Observations of the wall-pinned mode in ${}_{}{}^3{}_{}{}^{}\mathrm{He}$-$B$ allow new magnetic relaxation phenomena to be studied. Excepting the quantitative value of the zero-time ringing frequency, comparison of experiment with theory is satisfactory, including a linear dependence of the square of the ringing period on time and a square-root singularity near $T_c$ in the relaxation parameter.