کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1476453 | 1510146 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic properties of Cu1+xMn2âxO4 and Ni1+xMn2âxO4 solid solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Magnetic properties of Cu1+xMn2âxO4 and Ni1+xMn2âxO4 solid solutions Magnetic properties of Cu1+xMn2âxO4 and Ni1+xMn2âxO4 solid solutions](/preview/png/1476453.png)
چکیده انگلیسی
Magnetic properties of two spinel oxides solid solutions, Cu1+xMn2âxO4 and Ni1+xMn2âxO4, are reported. These series are characterized by two magnetic transitions: the upper one, of ferrimagnetic type, occurs at about 85Â K (for copper-based) and at 105-110Â K (for nickel-based spinels), independently of the x-content; the lower transition may be related to a Néel-type collinear ordering and takes place at 30 and 45Â K, respectively. Application of moderate fields (HÂ >Â 250Â Oe) make both transitions to merge into one broad maximum in the magnetization, which takes place at lower temperature when applying larger fields. Magnetization cycles with temperature (ZFC/FC) or field (loops) allowed us to well characterize the ordered state. The effective moment follows the expected behavior when manganese ions are being substituted by ions of lower magnetic moment (Ni2+ and Cu2+).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 27, Issues 13â15, 2007, Pages 3911-3914
Journal: Journal of the European Ceramic Society - Volume 27, Issues 13â15, 2007, Pages 3911-3914
نویسندگان
O. Peña, X. Cailleaux, B. Piriou, M. del Canto, S. Abarca, E. RÃos, J. Ortiz, J.L. Gautier, P.N. Lisboa-Filho, C. Moure,