کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1599410 | 1005094 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of ferrites on magnetic transport properties in La2/3Sr1/3MnO3/ferrites composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of ferrites on magnetic transport properties in La2/3Sr1/3MnO3/ferrites composites Effects of ferrites on magnetic transport properties in La2/3Sr1/3MnO3/ferrites composites](/preview/png/1599410.png)
چکیده انگلیسی
Effects of soft-magnetic MnZn ferrite (Mn0.5Zn0.5Fe2O4, MZF) and hard-magnetic Ba ferrite (BaO·6Fe2O3, BaM) on the structure and magnetic transport properties of [La2/3Sr1/3MnO3](LSMO)/(x) [ferrites] (ferrites=MZF, BaM) composites have been investigated. It was found that the inclusion of MZF phase reduces magnetization and ferromagnetic-paramagnetic transition temperature (Tc) of the composites. With increasing the content of the dopants, the high-temperature magnetoresistance (MR) decreases, whereas low-temperature MR increases and reaches 42% at 150 K and x=0.1. However, for the LSMO/BaM composites, magnetization and ferromagnetic-paramagnetic transition temperature (Tc) decrease firstly as x<5%, and then increase as x>5%. The resistivity of the composites increases by five orders of magnitude at x=1% and is out of measured range at x=5%. High magnetic field has little effect on the resistivity and magnetoresistance for the composites with x>5%, which may originate from the pinning effect of BaM grains.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Metallurgica Sinica (English Letters) - Volume 22, Issue 1, February 2009, Pages 51-57
Journal: Acta Metallurgica Sinica (English Letters) - Volume 22, Issue 1, February 2009, Pages 51-57
نویسندگان
Zhengyou ZHOU, Xiaoshan WU, Jun DU, Sheng XU, Xiaojun BAI, Guangsheng LUO, Fengyi JIANG,