کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1333628 979086 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Control of retention and fatigue-free characteristics in CaBi4Ti4O15 thin films prepared by chemical method
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Control of retention and fatigue-free characteristics in CaBi4Ti4O15 thin films prepared by chemical method
چکیده انگلیسی

Ferroelectric CaBi4Ti4O15 (CBTi144) thin films were deposited on Pt/Ti/SiO2/Si substrates by the polymeric precursor method. The films present a single phase of layered-structured perovskite with polar axis orientation after annealing at 700 °C for 2 h in static air and oxygen atmosphere. The a/b-axis orientation of the ferroelectric film is considered to be associated with the preferred orientation of the Pt bottom electrode. It is noted that the films annealed in static air showed good polarization fatigue characteristics at least up to 1010 bipolar pulse cycles and excellent retention properties up to 104 s. On the other hand, oxygen atmosphere seems to be crucial in the decrease of both, fatigue and retention characteristics of the capacitors. Independently of the applied electric field, the retained switchable polarization approached a nearly steady-state value after a retention time of 10 s.

Fatigue of CBTi144 thin film obtained by polymeric precursor method.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Solid State Chemistry - Volume 179, Issue 7, July 2006, Pages 2206–2211
نویسندگان
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