این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Nanostructures، جلد ۹، شماره ۲، صفحات ۲۰۲-۲۱۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Structural, Electrical, and impedance spectroscopy studies of Barium substituted nano calcium ferrites synthesized by solution combustion method.
چکیده انگلیسی مقاله Barium substituted nanocrystalline ferrites with chemical composition BaxCa1-xFe2O4 (x =0.0 to 0.25) BCAF were prepared by solution combustion method. The phase formation of mixed spinal structured ferrites was confirmed by PXRD analysis. The average crystallite size was calculated using Debye-Scherrer formula and it was found to be in the range of 27-44 nm. Surface morphology was analyzed by SEM, it reveals the highly porous nature of the synthesized samples. Nanocrystalline nature of samples was confirmed by TEM. The real and imaginary part of dielectric constant (ε′ & ε′′), dielectric loss factor (tan δ) and AC conductivity (σac) of the samples were measured using LCR meter in the frequency range of 100 Hz–5 MHz at room temperature. The dielectric constant of the synthesized ferrite samples was found to decrease with increase in frequency and finally reaches a constant value at higher frequencies which is typical behavior of dielectric ferrites. The observed dielectric dispersion is of Maxwell-Wagner type interfacial polarization. The contribution of grain boundary resistance has been studied from the cole-cole plots. The impedance spectroscopy analysis confirms the non-Debye type of conductivity relaxation for the nanocomposite. The high value of the dielectric constant makes the material suitable for miniature memory devices based capacitive components or energy storage devices. The samples also show low dielectric losses at high-frequency region which make them suitable for high-frequency applications and also long relaxation time of BCAF nanocomposites could make them suitable for nano scale spintronic devices.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله Puttaraju Shankar |
Department of Physics, Sai Vidya Institute of Technology, Bengaluru, India

Bhavyashri Shetty |
Department of Physics, Don Bosco Institute of Technology, Bangalore, India

Antony Lazor Jayasheelan |
Department of Physics, Maharani’s Science College for Women Bengaluru, India

Nanja Reddy Sivasankara Reddy |
Department of Physics, Presidency University , Bangalore, India

Challa Seshu Prakash |
Department of Physics, SJC Institute of Technology, Chikkaballapura, India

نشانی اینترنتی http://jns.kashanu.ac.ir/article_88767_f10bf1380f400a10246ddc39c092ea28.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/497/article-497-1595455.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات