Static magnetic and microwave properties of Li-ferrite films prepared by pulsed laser deposition

Autor:	S. A. Shaheen, F. J. Cadieu, R. Rani, W. Mendoza, Carl E. Patton, M. J. Hurben, B. Peng
Rok vydání:	1997
Předmět:	Laser linewidth Materials science Absorption spectroscopy Analytical chemistry Sapphire General Physics and Astronomy Ferrite (magnet) Coercivity Ferromagnetic resonance Pulsed laser deposition Diffractometer
Zdroj:	Journal of Applied Physics. 81:4801-4803
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.365468
Popis:	Highly textured Li-ferrite films have been synthesized by pulsed laser deposition from bulk targets onto c-plane sapphire substrates. For substrate temperatures approaching 1000 °C the growth mode was predominantly (333). A similar growth mode was recently reported for Ni-ferrite films grown onto c-plane sapphire substrates. The films were 4–8 μm thick and were grown at deposition rates of 3–5 A/s at oxygen partial pressures of 200–400 mTorr. Magnetic measurements were made by SQUID and 9.5 GHz ferromagnetic resonance (FMR) on the as deposited films. Textured Li-ferrite films with x-ray diffractometer intensity ratios of I(333)/I(311)=10.3 for films made in 200 mTorr oxygen and 14.5 for films made in 400 mTorr oxygen exhibited room temperature in-plane intrinsic coercivities of
Databáze:	OpenAIRE
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