QUANTUM NUCLEATION OF MAGNETIC-BUBBLES

Authors
FERRERA A CHUDNOVSKY EM
Citation
A. Ferrera et Em. Chudnovsky, QUANTUM NUCLEATION OF MAGNETIC-BUBBLES, Physical review. B, Condensed matter, 53(1), 1996, pp. 354-358
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
53
Issue
1
Year of publication
1996
Pages
354 - 358
Database
ISI
SICI code
0163-1829(1996)53:1<354:QNOM>2.0.ZU;2-#
Abstract
We study the thermally assisted quantum nucleation of magnetic bubbles in thin ferromagnetic films. For systems with high magnetic anisotrop y this problem is mathematically analogous to the problem of quantum n ucleation of a relativistic scalar field in 2+1 dimensions. Instantons of that model are computed in the most interesting limit of low barri er. In that limit the nucleation rate is a universal function of tempe rature which can be tested in experiment.