An antiferromagnetic particle with an excess spin j→ has 2 degrees of freedom. The one associated with j→ is ferromagnetic, while the antiferromagnetic behavior involves Néel vector n→ It is shown that the spin-parity effect described by Loss et al. has to do with the ferromagnetic degree of freedom and does not imply the localization of n→ for small enough particles for half-integer spin. It is also shown that the tunnel splitting associated with n→ is insensitive to applied fields.
ASJC Scopus subject areas
- Physics and Astronomy(all)