D.H. Lee, G. Grinstein, et al.
Physical Review Letters
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.
D.H. Lee, G. Grinstein, et al.
Physical Review Letters
Yuhai Tu, G. Grinstein, et al.
Physical Review Letters
G. Grinstein, Z.-W. Lai, et al.
Physical Review A
R.H. Koch, G. Grinstein, et al.
Physical Review Letters