Citation
H. Saito et al., Quantum spin dynamics of antiferromagnetic ring with central excess spin, SYNTH METAL, 121(1-3), 2001, pp. 1788-1789
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779
→ ACNP
Volume
121
Issue
1-3
Year of publication
2001
Pages
1788 - 1789
Database
ISI
SICI code
0379-6779(20010315)121:1-3<1788:QSDOAR>2.0.ZU;2-U
Abstract
We propose a path integral method to investigate the quantum spin dynamics.
A centroid with spin is introduced as an average spin coordinate of a clos
ed isomorphic necklace of each spin space, so-called a spin centroid. We ca
lculate the magnetization of a system with total spin 1/2 and observe magne
tic quantum tunneling amplitude becomes zero.