David P. DiVincenzo, Daniel Loss
Journal of Magnetism and Magnetic Materials
Within a wide class of ferromagnetic and antiferromagnetic systems, quantum tunneling of magnetization direction is spin-parity dependent: it vanishes for magnetic particles with half-integer spin, but is allowed for integer spin. A coherent-state path-integral calculation shows that this topological effect results from interference between tunneling paths. © 1992 The American Physical Society.
David P. DiVincenzo, Daniel Loss
Journal of Magnetism and Magnetic Materials
R.H. Koch, G. Grinstein, et al.
Physical Review Letters
J.F. Fernandez, G. Grinstein, et al.
Physical Review Letters
G. Grinstein, C. Jayaprakash, et al.
Physica D: Nonlinear Phenomena