کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9834096 1524906 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observation of a near 100% magnetoresistance in (La0.8Bi0.2)0.67Ca0.33MnO3
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Observation of a near 100% magnetoresistance in (La0.8Bi0.2)0.67Ca0.33MnO3
چکیده انگلیسی
The electrical transport properties of (La0.8Bi0.2)0.67Ca0.33MnO3 was studied at the temperature and magnetic field ranges from 10 to 300 K and 0 to 3 T, respectively. An obvious difference in temperature and magnetic field dependence of resistivity between the (La0.8Bi0.2)0.67Ca0.33MnO3 and pure La0.67 Ca0.33MnO3 was observed. Especially, an enhanced magnetoresistance effect was obtained in the (La0.8Bi0.2)0.67Ca0.33MnO3, such as, a near 100% magnetoresistance plateau within a temperature ranging from 10 to 180 K was observed in a 3 T field. The unusual large magnetoresistance value is encouraging as regard to the potential application of CMR materials. On the other hand, a significant hysteresis both in temperature and magnetic field dependence resistivity is simultaneously observed in the Bi-doped sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 292, April 2005, Pages 260-265
نویسندگان
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