Pulsed-laser beam profiling for deposition of high-T_c YBCO films

1999/06/03 by Evgeny V. Pechen, Pechen, Evgeny V.
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Superconductivity (cond-mat.supr-con) #cond-mat.mtrl-sci #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.cond-mat/9906040

3 pages, 2 figures, 1 table

arxiv created 1999/06/07 · arxiv updated 2009/11/30

Abstract

A special shaping of YAG:Nd³⁺ laser beam profile has been found to improve homogeneity and T_c of YBa₂Cu₃O_7-δ films being deposited by the pulsed laser. Targets of a considerably non-stoichiometric composition and substrates of slanting cuts have turned to be necessary for the high-quality film growing. Multiple droplets and solid particles ejected from the target surface by the infrared radiation are removed successfuly from the laser-induced plasma by use of a velocity filter.

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