کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1815839 | 1525262 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Growth and characterization of Sm3+-substituted PZT thin films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Growth and characterization of Sm3+-substituted PZT thin films Growth and characterization of Sm3+-substituted PZT thin films](/preview/png/1815839.png)
چکیده انگلیسی
We report a systematic study on growth of 2% and 4% Samarium (Sm) substituted lead zirconate titanate (PZT) thin films (with molar ratio of Zr:Ti::65/35) by sol gel technique on Pt/Si ã1 0 0ã and Pt/Si ã1 1 1ã substrates. XRD analysis show single phase for all films. Surface morphology was studied using atomic force microscope (AFM). A metal/ferroelectric/metal (MFM) structure was formed by depositing gold electrode on top of the film for electrical measurements (I-V (current vs voltage), C-V (capacitance vs voltage), P-E (polarization vs electric field)). The films show well-defined ferroelectric behaviour for both compositions (2% and 4% Sm-substituted PZT). I-V measurements show a compositional shift along âve (negative) voltage axis. To obtain optical band gap, films were deposited on fused quartz and transmittance measurements were performed. Optical band gap was calculated from (αhÏ
)2 vs hÏ
graph (where α is the extinction coefficient, h the planck's constant and Ï
the frequency of light). The results are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 388, Issues 1â2, 15 January 2007, Pages 404-411
Journal: Physica B: Condensed Matter - Volume 388, Issues 1â2, 15 January 2007, Pages 404-411
نویسندگان
S.K. Pandey, Shiv Kumar, S.N. Chatterjee, Upendra Kumar, Chandra Prakash, Ratnamala Chatterjee, T.C. Goel,