Evidence of very high coercive fields in orthoferrite phases of PLD grown thin films

Citation
Ds. Schmool et al., Evidence of very high coercive fields in orthoferrite phases of PLD grown thin films, J MAGN MAGN, 195(2), 1999, pp. 291-298
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
0304-8853 → ACNP
Volume
195
Issue
2
Year of publication
1999
Pages
291 - 298
Database
ISI
SICI code
0304-8853(199905)195:2<291:EOVHCF>2.0.ZU;2-4
Abstract
Thin magnetic layers have been prepared by pulsed laser deposition (PLD) fr om targets of the orthoferrites: DyFeO3, GdFeO3 SmFeO3 and YFeO3. All layer s were deposited onto quartz substrates at 450 degrees C under oxygen parti al pressures ranging from 0 to 80 mTorr. The resulting layers display evide nce of various magnetic phases, including garnet and orthoferrite phases, a s evidenced by X-ray diffraction. The magnetic properties of the thin films have been analysed using SQUID and vibrating sample magnetometries. A simp le model is proposed to aid the analysis of hysteresis loops for samples of more than one magnetic phase. The orthoferrite phases display very high co ercive fields, in the range 1.5-1.8 T. (C) 1999 Elsevier Science B.V. All r ights reserved.