Effects of substrate temperature and oxygen pressure on the magnetic properties and structures of CoFe2O4 thin films prepared by pulsed-laser deposition

2007 ◽  
Vol 253 (18) ◽  
pp. 7456-7460 ◽  
Author(s):  
Jian-ping Zhou ◽  
Hong-cai He ◽  
Ce-Wen Nan
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Substrate Temperature ◽  
Pulsed Laser Deposition ◽  
Oxygen Pressure ◽  
Pulsed Laser ◽  
Laser Deposition

Nano-Polycrystalline Vanadium Oxide Thin Films Prepared by Pulsed Laser Deposition

2008 ◽  
Vol 8 (5) ◽  
pp. 2604-2608 ◽  
Author(s):  
Y. L. Wang ◽  
M. C. Li ◽  
X. K. Chen ◽  
G. Wu ◽  
J. P. Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Substrate Temperature ◽  
Vanadium Oxide ◽  
Pulsed Laser Deposition ◽  
Oxygen Pressure ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Oxide Thin Films ◽  
Vanadium Oxide Thin Films

Nano-polycrystalline vanadium oxide thin films have been successfully produced by pulsed laser deposition on Si(100) substrates using a pure vanadium target in an oxygen atmosphere. The vanadium oxide thin film is amorphous when deposited at relatively low substrate temperature (500 °C) and enhancing substrate temperature (600–800 °C) appears to be efficient in crystallizing VOx thin films. Nano-polycrystalline V3O7 thin film has been achieved when deposited at oxygen pressure of 8 Pa and substrate temperature of 600 °C. Nano-polycrystalline VO2 thin films with a preferred (011) orientation have been obtained when deposited at oxygen pressure of 0.8 Pa and substrate temperatures of 600–800 °C. The vanadium oxide thin films deposited at high oxygen pressure (8 Pa) reveal a mix-valence of V5+ and V4+, while the VOx thin films deposited at low oxygen pressure (0.8 Pa) display a valence of V4+. The nano-polycrystalline vanadium oxide thin films prepared by pulsed laser deposition have smooth surface with high qualities of mean crystallite size ranging from 30 to 230 nm and Ra ranging from 1.5 to 22.2 nm. Relative low substrate temperature and oxygen pressure are benifit to aquire nano-polycrystalline VOx thin films with small grain size and low surface roughness.

Anisotropic magnetic properties of Zn1–xCoxO thin films grown by pulsed laser deposition

2006 ◽  
Vol 3 (4) ◽  
pp. 1126-1129
Author(s):  
J. W. Lee ◽  
S. Kuroda ◽  
S. Yamada ◽  
K. Takita
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition

Pulsed laser deposition of oriented V2O5 thin films

2000 ◽  
Vol 15 (10) ◽  
pp. 2249-2265 ◽  
Author(s):  
Jeanne M. McGraw ◽  
John D. Perkins ◽  
Falah Hasoon ◽  
Philip A. Parilla ◽  
Chollada Warmsingh ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Oxygen Pressure ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Glass Substrates ◽  
Wide Range ◽  
Phase Pure ◽  
Amorphous Quartz ◽  
Quartz Substrates

We have found that by varying only the substrate temperature and oxygen pressure five different crystallographic orientations of V2O5 thin films can be grown, ranging from amorphous to highly textured crystalline. Dense, phase-pure V2O5 thin films were grown on SnO2/glass substrates and amorphous quartz substrates by pulsed laser deposition over a wide range of temperatures and oxygen pressures. The films' microstructure, crystallinity, and texturing were characterized by electron microscopy, x-ray diffraction, and Raman spectroscopy. Temperature and oxygen pressure appeared to play more significant roles in the resulting crystallographic texture than did the choice of substrate. A growth map summarizes the results and delineates the temperature and O2 pressure window for growing dense, uniform, phase-pure V2O5 films.

Effect of oxygen pressure performance of PZO thin films deposited by pulsed laser deposition at low temperature

2017 ◽  
Vol 727 ◽  
pp. 1273-1279 ◽  
Author(s):  
Shihui Yu ◽  
Binhui Zhu ◽  
Haoran Zheng ◽  
Lingxia Li ◽  
Siliang Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Low Temperature ◽  
Pulsed Laser Deposition ◽  
Oxygen Pressure ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Effect Of Oxygen
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