کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10636721 993820 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, structure, and electronic and physical properties of the two SrZrS3 modifications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Synthesis, structure, and electronic and physical properties of the two SrZrS3 modifications
چکیده انگلیسی
We uncovered a new modification of SrZrS3 at low temperature, which forms the NH4CdCl3 type. The earlier reported type (GdFeO3) is the high temperature modification. The structures of both SrZrS3 modifications were determined by single crystal X-ray diffraction. Both crystallize in the orthorhombic crystal system, space group Pnma. The cell dimensions for α-SrZrS3 (NH4CdCl3 type) are: a=8.5254(7)Å, b=3.8255(3)Å, c=13.9246(12)Å, V=454.14(6)Å3(Z=4), and for β-SrZrS3 (GdFeO3 type): a=7.1080(5)Å, b=9.7715(7)Å, c=6.7406(5)Å, V=468.17(6)Å3(Z=4). The α form consists of building blocks of one-dimensional chains with edge-sharing ZrS6 octahedra and intervening alkaline earth cations (Sr). The β form is comprised of a three-dimensional network of corner-sharing ZrS6 octahedra, and the structure can be viewed as a distorted perovskite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Sciences - Volume 7, Issue 9, September 2005, Pages 1049-1054
نویسندگان
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