کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8015282 | 1517175 | 2018 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystal structure, oxygen nonstoichiometry and properties of novel Ruddlesden-Popper phase Sm1.8Sr1.2Fe2O7-δ
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Crystal structure, oxygen nonstoichiometry and properties of novel Ruddlesden-Popper phase Sm1.8Sr1.2Fe2O7-δ Crystal structure, oxygen nonstoichiometry and properties of novel Ruddlesden-Popper phase Sm1.8Sr1.2Fe2O7-δ](/preview/png/8015282.png)
چکیده انگلیسی
Sm1.8Sr1.2Fe2O7-δ Ruddlesden-Popper (RP) phase has been prepared using a glycerol nitrate technique at 1100â¯Â°C in air. The X-ray diffraction (XRD) pattern for the single phase Sm1.8Sr1.2Fe2O7-δ was refined by the Rietveld method within the tetragonal structure (space group P42/mnm) with unit cell parameters aâ¯=â¯5.489(1) Ã
; câ¯=â¯20.019 (1) Ã
. The oxygen content in Sm1.8Sr1.2Fe2O7-δ at room temperature determined by TGA and iodometric titration is estimated to be 6.85â¯Â±â¯0.01. Thermal expansion, electrical conductivity and Seebeck coefficient of Sm1.8Sr1.2Fe2O7-δ were measured within the temperature range of 25-1100â¯Â°C in air. Electron holes were considered as the main charge carriers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 213, 15 February 2018, Pages 158-161
Journal: Materials Letters - Volume 213, 15 February 2018, Pages 158-161
نویسندگان
L.V. Khvostova, N.E. Volkova, L.Ya. Gavrilova, V.A. Cherepanov,