التفاصيل البيبلوغرافية
| العنوان: |
Threading dislocation generation in epitaxial (Ba,Sr) TiO[sub 3] films grown on (001) LaAlO[sub 3] by pulsed laser deposition. |
| المؤلفون: |
Misirlioglu, I. B.1, Vasiliev, A. L.1, Aindow, M.1 m.aindow@uconn.edu, Alpay, S. P.1, Ramesh, R.2 |
| المصدر: |
Applied Physics Letters. 3/8/2004, Vol. 84 Issue 10, p1742-1744. 3p. 2 Diagrams. |
| مصطلحات موضوعية: |
*EPITAXY, *PULSED laser deposition, *THIN films, *TRANSMISSION electron microscopy, *COATING processes, *SURFACES (Technology) |
| مستخلص: |
Epitaxial Ba[sub 0.6]Sr[sub 0.4]TiO[sub 3] films were grown onto (001) LaAlO[sub 3] by pulsed-laser deposition, and the dislocation structures of the films were investigated using transmission electron microscopy. Misfit dislocations with a periodicity of about 7 nm and Burgers vectors b=a<100> were observed at the interface. A high density of threading dislocations was present the films and these also had b=a<100>. The data indicate that the threading dislocations are not generated as the result of half-loop climb from the deposit surface as proposed previously, but are instead formed when misfit dislocations are forced away from the interface during island coalescence. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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