NDLI: Highly textured fresnoite thin films synthesizedin situby pulsed laser deposition with CO2laser direct heating

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Highly textured fresnoite thin films synthesizedin situby pulsed laser deposition with CO2laser direct heating

Content Provider	Scilit
Author	Lorenz, Michael Pablos-Martín, Araceli De Patzig, Christian Stölzel, Marko Brachwitz, Kerstin Hochmuth, Holger Grundmann, Marius Höche, Thomas
Copyright Year	2013
Description	Journal: Journal of Physics D: Applied Physics Fresnoite Ba2TiSi2O8 (BTS) thin films were grown and crystallized in situ using pulsed laser deposition (PLD) with CO2 laser direct heating of the a-plane sapphire (1 1 0) substrates up to 1250 °C. Starting with 775 °C growth temperature, (0 0 1)- and (1 1 0)-textured BTS and BaTiO3 phases, respectively, could be assigned in the films, and the typical fern-like BTS crystallization patterns appear. For higher process temperatures of 1100 to 1250 °C, atomically smooth, terraced surface of the films was found, accompanied by crystalline high-temperature phases of Ba–Ti–Si oxides. HAADF micrographs taken in both scanning transmission electron microscopy and energy-dispersive x-ray spectrometry mode show details of morphology and elemental distribution inside the films and at the interface. To balance the inherent Si deficiency of the BTS films, growth from glassy BTS × 2 SiO2 and BTS × 2.5 SiO2 targets was considered as well. The latter targets are ideal for PLD since the employed glasses possess 100% of the theoretical density and are homogeneous at the atomic scale.
Related Links	http://iopscience.iop.org/0022-3727/47/3/034013/pdf/0022-3727_47_3_034013.pdf
ISSN	00223727
e-ISSN	13616463
DOI	10.1088/0022-3727/47/3/034013
Journal	Journal of Physics D: Applied Physics
Issue Number	3
Volume Number	47
Language	English
Publisher	IOP Publishing
Publisher Date	2014-01-22
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics D: Applied Physics Pulsed Laser Deposition Transmission Electron Microscopy
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials

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