کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1527823 995395 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of Zn0.95Cr0.05O DMS by co-precipitation and ceramic methods: Structural and magnetization studies
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Synthesis of Zn0.95Cr0.05O DMS by co-precipitation and ceramic methods: Structural and magnetization studies
چکیده انگلیسی

Transitional metal ions-substituted ZnO are recently explored for SPINTRONICS applications. Synthesis of single-phase oxide ‘diluted magnetic semiconductors’ (DMS) is a must to explore the magnetic properties arising due to the strong sp–d exchange interaction. The synthesis route plays a vital role in this aspect. In this work, we have prepared Zn0.95Cr0.05O by using the co-precipitation method and also the standard ceramic method and optimized the conditions to obtain the single-phase compound. X-ray diffraction measurements were done on Zn0.95Cr0.05O annealed and sintered at various temperatures. Comparing these results, we conclude that the co-precipitation method is more convenient for obtaining single-phase compound by the relatively low temperature processing of the precipitated hydroxides. Pelleted sample examined for its magnetic property using a vibrating sample magnetometer (VSM) indicated ferromagnetic-like behavior at 300 K and a spin-glass state at 77 K.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 97, Issue 1, 10 May 2006, Pages 188–192
نویسندگان
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