Tunable ferroelectric thin films with enhanced responses through nano- structural control

BaxSr1-xTiO3 (BST) and its composite films have been studied for the improvement of the tunable performances via nano-structual control. The strong correlation between strain and tunability similar to that between strain and permittivity was confirmed in the epitaxial BST x=0 films, indicating that the high tunability of BST is strongly related to its high permittivity. The "oriented" nano-composite films composed of BST x=1 and CeO2 i.e. low-K dielectric, have achieved rather high tunability as compared to the significantly lowered permittivity. The obtained composite films also benefit from a suppressed temperature dependence of permittivity and tunability.


Published in:
16th IEEE International Symposium on Applications of Ferroelectrics, 1-2, 195-197
Presented at:
16th IEEE International Symposium on Applications of Ferroelectrics, Nara, Japan, May 27-31, 2007
Year:
2007
Publisher:
IEEE
Laboratories:




 Record created 2009-06-25, last modified 2018-03-17


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