کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10710327 | 1024673 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electron spin resonance analysis of magnetic structures in La2/3Ca1/3MnO3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Measurements of electron spin resonance (ESR) of La2/3Ca1/3MnO3 (LCMO) in the ferromagnetic and paramagnetic phases were carried out. Phase transition and temperature dependence of the peak-to-peak ESR linewidth were determined. The transition temperature between ferromagnetic and paramagnetic phases was observed at 265Â K. A prominent increase of the peak-to-peak linewidth with decreasing temperature below Tc was observed. Using the dynamic scale theory and block spin transformation in critical phenomenon, the quantitative calculation of peak-to-peak linewidth at near Tc was made, which was in good agreement with the experimental data. It was believed that the long interactions between the ferromagnetic microregions for LCMO played a key role in determining the ESR linewidth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 293, Issue 2, May 2005, Pages 782-786
Journal: Journal of Magnetism and Magnetic Materials - Volume 293, Issue 2, May 2005, Pages 782-786
نویسندگان
Tao Ding, Weitao Zheng, Jianfeng Zang, Hongwei Tian, Bing Zheng, Xin Wang, Shansheng Yu, Yuming Wang,