کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1597018 | 1002892 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic properties of “two electron” doped manganites: CaMn1âxWxO3  (0.05â¤xâ¤0.20)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The magnetic properties as well as the electronic transport behaviors of Mn-site electron-doped manganites CaMn1âxWxO3 (0.05â¤xâ¤0.20) have been studied. For low doping level (x=0.05), the system shows the coexistence of multi-magnetic phases which is tunable by the applied magnetic field. For x=0.07, M-T curve shows an obvious phase transition believed to be from paramagnetism (PM) to G-antiferromagnetism (AFM) at around 190 K. With further increase of tungsten concentration (x=0.10,0.12,0.14), besides a transition at Tlâ¼ 180 K, the system exhibits a peak at Thâ¼ 350 K. According to the electron diffraction pattern, it is believed that the peak at Th is not a PM to charge ordering (CO) transition but a consequence of orbit ordering. The Jahn-Teller transition induced by the W doping should be responsible for the effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 139, Issue 9, September 2006, Pages 460-464
Journal: Solid State Communications - Volume 139, Issue 9, September 2006, Pages 460-464
نویسندگان
Li Pi, Shixiong Zhang, Wei Tong, Shun Tan, Yuheng Zhang,