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Characterisation of Pulsed Laser Deposited Bi Doped Dy Iron Garnet Thin Films on GGG(111), GGG(110), YSZ(lO0) and Si(100)

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Papakonstantinou, P, Teggart, B and Atkinson , R (1997) Characterisation of Pulsed Laser Deposited Bi Doped Dy Iron Garnet Thin Films on GGG(111), GGG(110), YSZ(lO0) and Si(100). JOURNAL DE PHYSIQUE IV , 7 (C1). pp. 475-476. [Journal article]

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URL: http://hal.archives-ouvertes.fr/docs/00/25/48/42/PDF/ajp-jp4199707C1192.pdf

DOI: 10.1051/jp4:19971192

Abstract

Bi and Ga substituted Dy iron garnet films (similar to 350 nm thick) have been pulsed laser deposited on single crystalline GGG (111), GGG (110), YSZ (100) and Si (100) substrates at a background pressure of 0.1 mbar and substrate temperature in the range of 550-590 degrees C. Epitaxial growth was obtained only in the case of GGG substrates. Growth on the other substrates resulted in randomly oriented polycrystalline layers. However, in all cases the films exhibited perpendicular anisotropy and Kerr blue spectra of comparable magnitude. The magnetic anisotropy was explained in terms of in plane tensile stress induced by the difference in thermal expansion coefficients between substrate and film. The magneto-optical (MO) behaviour in the 250-900 nm wavelength range, on the first three substrates was consistent with theoretical calculations based on the fundamental constants of BI:YIG thick films grown by LPE. MO studies for growth on Si suggested the presence of interfacial layers introduced by chemical reactions at the film/substrate interface.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:17063
Deposited By:Professor Pagona Papakonstantinou
Deposited On:11 Feb 2011 09:15
Last Modified:11 Feb 2011 09:15

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