کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1621039 | 1516397 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic and structural properties of the chromium-based Mn1âxCdxCr2S4 thiospinel
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Magnetic and structural properties of the chromium-based Mn1âxCdxCr2S4 thiospinel Magnetic and structural properties of the chromium-based Mn1âxCdxCr2S4 thiospinel](/preview/png/1621039.png)
چکیده انگلیسی
The (Mn1âxCdx)Cr2S4 phases (0 â¤Â x â¤Â 0.6) have been synthesized from the corresponding elements at 1123 K. These samples were characterized by powder X-ray diffraction (XRD) and magnetic susceptibility. The (Mn1âxCdx)Cr2S4 compounds crystallize in the space group Fd-3m with cell parameters a = 10.101(6) Ã
, 10.139(3)Â Ã
, 10.165(2)Â Ã
, and 10.192(1)Â Ã
for x = 0, 0.2, 0.4 and 0.6, respectively. An overall ferrimagnetic behavior is observed for all samples. The ferromagnetic component increases rapidly when manganese is substituted by non-magnetic cadmium, as shown by ZFC/FC measurements. At the same time, the value of the magnetization M50 at 50 kOe, deduced from M(H) loops, also increases with increasing cadmium content because the antiferromagnetic alignment between chromium and manganese spins is progressively lost, leading toward well aligned moments pointing into the same direction. These results are explained by a rearrangement of the chromium spins when Mn located at the tetrahedral sites, is substituted by Cd.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 480, Issue 2, 8 July 2009, Pages 291-294
Journal: Journal of Alloys and Compounds - Volume 480, Issue 2, 8 July 2009, Pages 291-294
نویسندگان
Patricia Barahona, Antonio Galdamez, VÃctor ManrÃquez, Octavio Peña,