Crystal and magnetic structures of Sm epitaxial thin films and Sm/Y superlattices

Citation
K. Dumesnil et al., Crystal and magnetic structures of Sm epitaxial thin films and Sm/Y superlattices, PHYS REV B, 60(15), 1999, pp. 10743-10746
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
15
Year of publication
1999
Pages
10743 - 10746
Database
ISI
SICI code
0163-1829(19991015)60:15<10743:CAMSOS>2.0.ZU;2-7
Abstract
Epitaxial Sm thin films and Sm/Y superlattices have been grown with a high single-crystal quality. The complex nine hexagonal close-packed planes stac king sequence has been successfully obtained in a 5000-Angstrom-thick film, whose magnetic behavior presents a long-range antiferromagnetic order of t he hexagonal sites below 100 K, as in the bulk element. However, from neutr on scattering, the relative magnetic and nuclear contributions indicate a s ignificant enhancement of the magnetic moment compared to the bulk value. F or the superlattice, the neutron-scattering results show neither long-range structural coherence of the stacking sequence along the c direction nor a coherent magnetic ordering at low temperatures. [S0163-1829(99)15035-5].