کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1804901 1024662 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thickness dependence of electroresistance in La0.67Ca0.33MnO3 epitaxial films
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Thickness dependence of electroresistance in La0.67Ca0.33MnO3 epitaxial films
چکیده انگلیسی

The electroresistance (ER) of La0.67Ca0.33MnO3 (LCMO) epitaxial thin films with different thicknesses was studied. For the 110 nm thick LCMO film, its ER shows a maximum at Tp, where the resistance shows a peak, and decreases to zero at lower temperatures. While for the 30 nm thick LCMO film, its ER is remarkable in a wide temperature range. Another interesting observation in this work is that the electric current can tune the magnetoresistance of the ultrathin LCMO thin film. The results were discussed by considering the coexistence of ferromagnetic metallic phase with the charge ordered phase, and the variation of the phase separation with film thickness and electric current. This work also demonstrates that electric current can tune the magnetoresistance of the manganites, which is helpful for their applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 306, Issue 1, November 2006, Pages 55–59
نویسندگان
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