H. Akimoto et al., Melting process and interface instability of highly magnetized solid He-3:Role of the magnetization gradient, PHYS REV L, 85(9), 2000, pp. 1894-1897
We elucidate the melting process of highly magnetized solid He-3 by observi
ng the magnetization profile and the liquid-solid interface simultaneously.
Clear enhancements of magnetization and magnetization gradients at the int
erface of both the solid and the liquid were observed during melting. These
measurements provide a mesoscopic confirmation of the melting scenario of
Castaing and Nozieres, and explain the long delay before the instability se
ts in: The magnetization gradient in the liquid leads to an initial suppres
sion of the melting instability, in accordance with our extension of the st
ability analysis of Puech et al. This resolves the discrepancy between theo
ry and experiment.