Grain Boundaries in Yba2 Cu3O7-δ Thin Films

1989 ◽  
Vol 169 ◽  
Author(s):  
M. Grant Norton ◽  
Lisa A. Tietz ◽  
C. Barry Carter ◽  
Stephen E Russek ◽  
Brian H. Moeckly ◽  
...  
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Grain Boundaries ◽  
Weak Link ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Superconducting Films ◽  
High Angle ◽  
Twin Boundaries

AbstractGrain boundaries in YBa2Cu3O7-δ thin films deposited on (001)-MgO by pulsed laser ablation have been characterized using selected area diffraction. In addition to twin boundaries, the presence of both low-angle and high-angle grain boundaries were characteristic of the film's microstructure. The presence of certain grain boundaries may be responsible for the weak-link Josephson behavior observed in small constrictions formed in superconducting films on MgO.

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

ChemInform Abstract: Pulsed Laser Ablation Synthesis of NbNx (0 ≤ x ≤ 1.3) Thin Films.

ChemInform ◽  
2010 ◽  
Vol 26 (18) ◽  
pp. no-no
Author(s):  
R. E. TREECE ◽  
J. S. HORWITZ ◽  
D. B. CHRISEY ◽  
E. P. DONOVAN ◽  
S. B. QADRI
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation
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