کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1506527 | 993799 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Revisiting the Sr–Cr(IV)–O system at high pressure and temperature with special reference to Sr3Cr2O7
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
High pressure and temperature are used to synthesise perovskite related phases in the Sr–Cr(IV)–O system. The n = 1, 2 and ∞ members of the Srn+1CrnO3n+1 family have been obtained. Another new member, n = 3 as well as an hexagonal layered perovskite have also been observed by transmission electron microscopy and electron diffraction. The average structure of Sr3Cr2O7 as determined by XRD has space group I4/mmm, whereas its microstructure includes a large amount of defects both in the layer stacking and within the layers. 2D magnetism and a large electrical resistance in Sr3Cr2O7 are observed as opposed to the nonlocalized electronic behaviour of SrCrO3.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Sciences - Volume 9, Issue 7, July 2007, Pages 564–573
Journal: Solid State Sciences - Volume 9, Issue 7, July 2007, Pages 564–573
نویسندگان
Elizabeth Castillo-Martínez, Miguel Ángel Alario-Franco,