POLARIZED NEUTRON STUDY OF ANTIFERROMAGNETIC ORDERING IN DY ER SUPERLATTICES/

Authors
DUFOUR C DUMESNIL K MARCHAL G MANGIN P HENNION M KAISER H RHYNE JJ
Citation
C. Dufour et al., POLARIZED NEUTRON STUDY OF ANTIFERROMAGNETIC ORDERING IN DY ER SUPERLATTICES/, Physica. B, Condensed matter, 213, 1995, pp. 242-244
Citations number
6
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
213
Year of publication
1995
Pages
242 - 244
Database
ISI
SICI code
0921-4526(1995)213:<242:PNSOAO>2.0.ZU;2-C
Abstract
Dy/Er superlattices, grown on sapphire, exhibit a succession of magnet ic phases. Below the ordering temperature of dysprosium, the helix of dysprosium propagates coherently through paramagnetic erbium. At low t emperature, dysprosium becomes ferromagnetically ordered in each layer but the layers are antiferromagnetically stacked. A polarized neutron scattering study of the low-temperature phase is presented. It shows that the antiferromagnetic peaks are never purely spin-flip.