Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 3232-3235 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 69 |
| Issue number | 22 |
| DOIs | |
| State | Published - 1992 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy