THEORY OF RELAXATION OF MAGNETIC CLUSTERS IN A STERN-GERLACH SETUP

Authors
DATTAGUPTA S MAHANTI SD
Citation
S. Dattagupta et Sd. Mahanti, THEORY OF RELAXATION OF MAGNETIC CLUSTERS IN A STERN-GERLACH SETUP, Physical review. B, Condensed matter, 57(17), 1998, pp. 10244-10247
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
17
Year of publication
1998
Pages
10244 - 10247
Database
ISI
SICI code
0163-1829(1998)57:17<10244:TOROMC>2.0.ZU;2-#
Abstract
We use a stochastic theory approach to discuss different scenarios suc h as ''locked moment'' and ''super-paramagnetic'' behavior of magnetic clusters seen in Stern-Gerlach (SG) experiments. A dimensionless para meter lambda tau(E) (where lambda is an internal spin relaxation rate and tau(E) is the time spent by the cluster in the field gradient regi on) and the initial polarization of the cluster moment are shown to de termine sensitively the position of the cluster beam on the SG screen. [S0163-1829(98)08517-8].