کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1805192 | 1024671 | 2007 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Formation of charge ordering and complex magnetic properties in the (Bi,Ca)Mn1-xCrxO3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Formation of charge ordering and complex magnetic properties in the (Bi,Ca)Mn1-xCrxO3 Formation of charge ordering and complex magnetic properties in the (Bi,Ca)Mn1-xCrxO3](/preview/png/1805192.png)
چکیده انگلیسی
In this paper, two series samples, Bi0.6Ca0.4Mn1-xCrxO3 (Bi-rich, 0⩽x⩽0.05), and Bi0.24Ca0.76Mn1-xCrxO3 (Bi-poor, 0⩽x⩽0.24) are investigated by means of resistivity, magnetization and electron-spin-resonance. The formation process of charge ordering is studied. The evolution of charge ordering with Cr content is drastically different between Bi-rich and Bi-poor samples. Charge ordering “melts” gradually with increasing Cr content in Bi-rich system while “collapses” when x⩾0.03 in Bi-poor series. These results are understood by considering the evolution of the Mn3+/Mn4+ ratio with Cr doping in different systems. Complex magnetic properties are observed in Bi-poor series with the doping level increasing from zero to 0.24. These behaviors are discussed in the context of phase separation scenario.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 312, Issue 1, May 2007, Pages 107-116
Journal: Journal of Magnetism and Magnetic Materials - Volume 312, Issue 1, May 2007, Pages 107-116
نویسندگان
Lan Luan, Zhe Qu, Shun Tan, Xi Lin, Yuheng Zhang,