2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16524Spin Tunneling in Fe8 powder : a comment on Europhys. Lett. 47, 722, 1999, by Del Berco et al.1 figureMesoscale and Nanoscale PhysicsSpin Tunneling in Fe$_8$ Molecular Nanomagnets [Comment on Europhys. Lett. 47, 722, 1999, by Del Barco et al.]text