کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1518448 1511617 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The investigations of phases with general formula M2FeV3O11, where M=Mg, Co, Ni, Zn by IR and Mössbauer spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
The investigations of phases with general formula M2FeV3O11, where M=Mg, Co, Ni, Zn by IR and Mössbauer spectroscopy
چکیده انگلیسی
Phases of general formula M2FeV3O11, where M=Mg, Co, Ni and Zn as well as the orthorhombic modification of FeNb11O29, have been investigated by the help of IR and Mössbauer spectroscopy. It was found that the isostructural compounds Co2FeV3O11, Mg2FeV3O11, Zn2FeV3O11, as well as Ni2FeV3O11 with a different structure have one single and almost identical chemical environment for iron(III). The large Mössbauer quadrupole splitting measured suggests that iron(III) is located in a highly distorted octahedron. The IR spectra of three isostructural M2FeV3O11 compounds are similar but differ from that of Ni2FeV3O11. The Mössbauer spectrum of orthorhombic FeNb11O29 has been fitted with two doublets, their hyperfine parameters indicating iron in distorted octahedral environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 68, Issues 5–6, May–June 2007, Pages 1087-1090
نویسندگان
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