Superlattice modulation and epitaxy of Tl2Ba2Ca2Cu3O10 thin films grown on MgO and srTiO3 substrates

We compare the superlattice modulation, microstructure, and epitaxy of Tl2Ba2Ca2Cu3O10 thin films grown on MgO [100] and SrTiO3 [100] substrates by dc diode sputtering. Films grown on MgO were found to be quite clean with the c axis perpendicular to the substrate. However, no in-plane orientational...

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Veröffentlicht in:	Applied physics letters 1989-04, Vol.54 (16), p.1579-1581
Hauptverfasser:	CHEN, C. H, HONG, M, WERDER, D. J, KWO, J, LIOU, S. H, BACON, D. D
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties Physics Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Zusammenfassung:	We compare the superlattice modulation, microstructure, and epitaxy of Tl2Ba2Ca2Cu3O10 thin films grown on MgO [100] and SrTiO3 [100] substrates by dc diode sputtering. Films grown on MgO were found to be quite clean with the c axis perpendicular to the substrate. However, no in-plane orientational relationship to the substrate was found. Films grown on SrTiO3, on the other hand, showed very good epitaxy to the substrate despite the presence of second phases. Films grown on MgO also exhibited a longer coherence length of the superlattice modulation than those grown on SrTiO3 under identical conditions.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.101387