Evolution of surface structure, microstructure, and superconducting properties during YBa2Cu3O7a-axis thin film growth

1998 ◽  
Vol 13 (3) ◽  
pp. 551-556
Author(s):  
A. F. Marshall

The evolution of surface structure, grain microstructure, and superconducting transition temperature of a-axis YBa2Cu3O7 thin films has been studied as a function of film thickness. The grain size increases and develops a bimodal distribution of grain size during film growth, concurrent with an improvement in Tc. The surface structure does not represent the grain size, but rather the development of the bimodal grain structure follows the formation of the surface structure. The results are discussed in terms of thin film growth modes.

2000 ◽  
Vol 653 ◽  
Author(s):  
Jie Zhang ◽  
James B. Adams

AbstractWe present FACET: a two dimensional simulator to model polycrystalline thin film growth, which links atomic scale processes to macroscopic phenomena. The model is based on the concept of describing the crystal surface in terms of preferred facets. Line segments were used to depict the profile of the grain and grain boundaries. Multiple nuclei are semi-randomly distributed along the textured or non-textured surface, and crystallographycally appropriate facets are created in the nucleation simulation. We use a Kinetic Lattice Monte Carlo (KLMC) method to calculate the inter-facet diffusion rates and use a continuum approach to grow the facets, hence the multiple grains. The software is Windows(95/98/2000/NT) based and has an integrated Graphical User Interface, within which a user can input deposition conditions and experimental and simulation data, visualize the nucleation and growth of the grains, and obtain the final grain structure and texture.


JOM ◽  
1987 ◽  
Vol 39 (6) ◽  
pp. 19-23 ◽  
Author(s):  
George H. Gilmer ◽  
Marcia H. Grabow

2000 ◽  
Vol 138 ◽  
pp. 126-127
Author(s):  
Yutaka Kaneko ◽  
Yasuaki Hiwatari ◽  
Katsuhiko Ohara ◽  
Tohru Murakami

1987 ◽  
Vol 103 ◽  
Author(s):  
R. W. Vook

ABSTRACTA review of the experimental and theoretical results describing thin film growth modes is presented. Thermodynamic criteria for determining which growth mode might be expected to occur in a particular case along with some kinetic considerations are given. The characteristics of each of the three principal growth modes, namely Frank and van der Merwe (layer), Stranski-Krastanov (layer plus island), and Volmer-Weber (island), are discussed. Lastly, the requirements favoring the growth of epitaxial multilayers are briefly considered.


2000 ◽  
Vol 51 (1) ◽  
pp. 81-86
Author(s):  
Yutaka KANEKO ◽  
Yasuaki HIWATARI ◽  
Katsuhiko OHARA ◽  
Tohru MURAKAMI

2019 ◽  
Vol 7 (27) ◽  
pp. 8477-8484 ◽  
Author(s):  
Harald Spreitzer ◽  
Benjamin Kaufmann ◽  
Christian Ruzié ◽  
Christian Röthel ◽  
Thomas Arnold ◽  
...  

An understanding of the thin film growth modes of substrate-induced polymorphs allows a deeper insight into the origin of this class of materials.


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