کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9801863 | 1515732 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic properties and magnetoresistance of polycrystalline SrLaCoO4
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Magnetic properties and magnetoresistance of polycrystalline SrLaCoO4 Magnetic properties and magnetoresistance of polycrystalline SrLaCoO4](/preview/png/9801863.png)
چکیده انگلیسی
Polycrystalline SrLaCoO4 with tetragonal K2NiF4 structure were prepared by a solid-state reaction process, and their magnetic properties and magnetoresistance effect were investigated systematically. The paramagnetic-ferromagnetic transition occurred at â¼250Â K. The curves of magnetization versus magnetic field at 150, 200 and 273Â K showed soft ferromagnetic, super paramagnetic and paramagnetic behavior, respectively. The resistivity increased monotonically with decreasing temperature. The magnetoresistance peak at â¼250Â K was due to the ferromagnetic transition. As for the magnetoresistance peak at 12Â K, the spin-glass transition at â¼12Â K should be responsible for it. In a magnetic field of 5Â T, the maximum magnetoresitance (MR) of â18.4% was obtained at 12Â K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 136, Issues 11â12, December 2005, Pages 576-579
Journal: Solid State Communications - Volume 136, Issues 11â12, December 2005, Pages 576-579
نویسندگان
Y.Y. Liu, X.M. Chen, X.Q. Liu,