Year: 1992
Type: article
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.
Source: Physical Review Letters
Authors: Daniel Loss, David P. DiVincenzo, G. Grinstein
Institution: IBM Research - Thomas J. Watson Research Center
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2021483030