FIELD-DEPENDENCE OF THE MAGNETIC-SUSCEPTIBILITY OF AN FE CR(211) SUPERLATTICE - EFFECT OF DISCRETENESS AND CHAOS/

Authors
TRALLORI L POLITI P RETTORI A PINI MG VILLAIN J
Citation
L. Trallori et al., FIELD-DEPENDENCE OF THE MAGNETIC-SUSCEPTIBILITY OF AN FE CR(211) SUPERLATTICE - EFFECT OF DISCRETENESS AND CHAOS/, Journal of physics. Condensed matter, 7(33), 1995, pp. 451-456
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
7
Issue
33
Year of publication
1995
Pages
451 - 456
Database
ISI
SICI code
0953-8984(1995)7:33<451:FOTMOA>2.0.ZU;2-R
Abstract
Recent experimental measurements on Fe/Cr(211) superlattices (Wang R W et al 1994 Phys. Rev. Lett. 72 920) show several peaks in the field d ependence of magnetic susceptibility. We show that the presence of the se peaks is due to the chaotic nature of the two-dimensional area-pres erving map by which we determine the equilibrium configuration of the system. We find a large number of metastable states and that the groun d state changes abruptly with increasing field, showing the fundamenta l role played by the discreteness of the lattice.