Effect of growth temperature on the magnetic, microwave, and cation inversion properties on NiFe2O4 thin films deposited by pulsed laser ablation deposition

2007 ◽  
Vol 101 (9) ◽  
pp. 09M517 ◽  
Author(s):  
C. N. Chinnasamy ◽  
S. D. Yoon ◽  
Aria Yang ◽  
Ashish Baraskar ◽  
C. Vittoria ◽  
...  
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Growth Temperature ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation

Thin Films of SrFeO2.5+x - Effect of Preferred Orientation on Oxygen Uptake

1994 ◽  
Vol 343 ◽  
Author(s):  
Brian W. Sanders ◽  
Jianhua Yao ◽  
Michael L. Post
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Oxygen Uptake ◽  
Growth Temperature ◽  
Deposition Temperature ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Oriented Films

ABSTRACTPulsed laser ablation has been used to deposit thin films of SrFeO25+x (x = 0 to ≈0.5). Previous work has shown that the orientation of the films, determined by powder x-ray diffraction depended strongly upon the deposition temperature. Films grown below 770 K showed little or no orientation. A growth temperature of 900 K resulted in films oriented (200). Growth temperatures of > 1000 K produced films oriented predominantly (110). At 673 K in an oxygen atmosphere, oriented films readily converted from the oxygen deficient brownmillerite form (x=0) to the oxygen rich cubic (or distorted cubic) perovskite form (x≈0.3). Films which exhibited no initial orientation did not react with oxygen under these conditions. Cycling non-oriented films between 230 and 800 ppm of oxygen in 101.3 kPa of nitrogen at 673 K resulted in weak (110) orientation. Once oriented, the films reacted readily with oxygen and exhibited measurable resistance changes. The conversion from oxygen deficient to oxygen rich form was monitored by x-ray diffraction and the DC resistance of the films.

Observations on the growth of YBa2Cu3O7-δ thin films on MgO by pulsed-laser ablation

1991 ◽  
Vol 49 ◽  
pp. 1068-1069
Author(s):  
M. Grant Norton ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Laser Ablation ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Laser Ablation Process ◽  
Deposition Parameters

Pulsed-laser ablation has been widely used to produce high-quality thin films of YBa2Cu3O7-δ on a range of substrate materials. The nonequilibrium nature of the process allows congruent deposition of oxides with complex stoichiometrics. In the high power density regime produced by the UV excimer lasers the ablated species includes a mixture of neutral atoms, molecules and ions. All these species play an important role in thin-film deposition. However, changes in the deposition parameters have been shown to affect the microstructure of thin YBa2Cu3O7-δ films. The formation of metastable configurations is possible because at the low substrate temperatures used, only shortrange rearrangement on the substrate surface can occur. The parameters associated directly with the laser ablation process, those determining the nature of the process, e g. thermal or nonthermal volatilization, have been classified as ‘primary parameters'. Other parameters may also affect the microstructure of the thin film. In this paper, the effects of these ‘secondary parameters' on the microstructure of YBa2Cu3O7-δ films will be discussed. Examples of 'secondary parameters' include the substrate temperature and the oxygen partial pressure during deposition.

ZnS thin films grown on Si(100) by XeCl pulsed laser ablation

2001 ◽  
Vol 177 (1-2) ◽  
pp. 73-77 ◽  
Author(s):  
K.T Hillie ◽  
C Curren ◽  
H.C Swart
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation

Nano-ionic thin films of gadolinia-doped ceria prepared by pulsed laser ablation

Ionics ◽  
2007 ◽  
Vol 13 (5) ◽  
pp. 343-348 ◽  
Author(s):  
P. Kuppusami ◽  
K. Muthukkumaran ◽  
R. Divakar ◽  
R. Kesavamoorthy ◽  
E. Mohandas ◽  
...  
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Doped Ceria

Fabrication of PDPhSM matrix nanocomposite thin films by pulsed laser ablation

2010 ◽  
Vol 31 (4) ◽  
pp. 1746-1748
Author(s):  
Ren-Guo Song ◽  
Fang-Er Yang ◽  
Xiao-Hong Weng ◽  
Wang-Zhao He
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Nanocomposite Thin Films ◽  
Matrix Nanocomposite

Deposition of YSZ Thin Films by Atmospheric Plasma-Assisted Pulsed Laser Ablation

2012 ◽  
Vol 40 (11) ◽  
pp. 2850-2852 ◽  
Author(s):  
Zihao Ouyang ◽  
Tae-Seung Cho ◽  
David N. Ruzic
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Atmospheric Plasma
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