The growth and properties of epitaxial KNbO3 thin films and KNbO3/KTaO3 superlattices

被引：89
|
作者：
Christen, HM [1 ]
Boatner, LA [1 ]
Budai, JD [1 ]
Chisholm, MF [1 ]
Gea, LA [1 ]
Marrero, PJ [1 ]
Norton, DP [1 ]
机构：
[1] UNIV PUERTO RICO,DEPT FIS,MAYAGUEZ,PR 00681
来源：
APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 11期
关键词：
D O I：
10.1063/1.116263
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Potassium niobate (KNbO3) thin films and potassium niobate/tantalate (KNbO3/KTaO3) superlattices have been grown on KTaO3 (001) substrates by pulsed loser deposition. The thin-film structures were analyzed by Rutherford backscattering/ion-channeling techniques, x-ray theta-2 theta and Phi scans, and both conventional and Z-contrast scanning transmission electron microscopy. Excellent film flatness and crystallinity are evidenced by these techniques. At room temperature, the KNbO3 films are characterized by an orthorhombic structure which differs from that of bulk KNbO3. The interfaces between the layers in the KNbO3/KTaO3 superlattice structures were found to be compositionally sharp on an atomic scale. (C) 1996 American Institute of Physics.
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页码：1488 / 1490
页数：3
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