Laser ablated Sr2FeMoO6 plasma studied by optical emission spectroscopy

A. Santagata; A. Di Trolio; G. P. Parisi; R. Larciprete

doi:10.1117/12.633541

7 June 2005 Laser ablated Sr₂FeMoO₆ plasma studied by optical emission spectroscopy

A. Santagata, A. Di Trolio, G. P. Parisi, R. Larciprete

Proceedings Volume 5850, Advanced Laser Technologies 2004; (2005) https://doi.org/10.1117/12.633541
Event: Advanced Laser Technologies 2004, 2004, Rome and Frascati, Italy

Abstract

The pulsed laser ablation and deposition of Sr₂FeMoO₆ films having good magnetic performances is strongly affected by the adopted deposition parameters, which require precise choices. Among them, the laser energy density seems to be the basic factor governing the achievement of the correct material phase during film growth. Optical emission spectroscopy of the plasma plume, produced by the laser interaction with stoichiometric targets, in different ablation and ambient conditions, can outline the plasma dynamics and consequently sustain hypothesis about the film formation mechanism. In order to follow the plasma dynamics during Nd:Yag laser (2=532 nm) ablation of Sr₂FeMoO₆ targets, time- and space-resolved optical emission spectroscopy measurements in the range 350 -500 nm have been performed. The integral intensities of spectral lines were measured as a function of distance from the target surface and laser power density in the presence of 02 partial pressure. The intensity ratio of ionic and atomic Strontium emission spectral line and their time-of-flights were measured as a function of laser energy density. On the basis of the obtained results it is shown how different plasma species kinetics can play a key role in determining the magnetic film properties.

Citation Download Citation

A. Santagata, A. Di Trolio, G. P. Parisi, and R. Larciprete "Laser ablated Sr₂FeMoO₆ plasma studied by optical emission spectroscopy", Proc. SPIE 5850, Advanced Laser Technologies 2004, (7 June 2005); https://doi.org/10.1117/12.633541

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