کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8943568 1645163 2019 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of chromium in the structural and magnetic properties of LaCo0.5Cr0.5O3 perovskite
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Influence of chromium in the structural and magnetic properties of LaCo0.5Cr0.5O3 perovskite
چکیده انگلیسی
Polycrystalline rare earth orthochromite LaCo0.5Cr0.5O3 has been synthesized by soft chemical method with the rhombohedral (R-3c space group) structure and physical properties such as magnetism has been compared with the prototype perovskite LaCo0.5Fe0.5O3 (orthorhombic: Pbnm). The magnetic transition is much lower (295 K) than the orthoferrite LaCo0.5Fe0.5O3, although it is also a canted antiferromagnet at low temperature. However, this perovskite faintly resembles the behavior of the parent LaCrO3 (orthorhombic: Pnma), which is reported to be weak ferromagnet at room temperature. The magnetic behavior of LaCo0.5Cr0.5O3 perovskite could be explained by the superexchange mechanism gives rise to antiferromagnetic interactions between the metal cations: Co3+-O-Cr3+, Co3+-O-Co3+ and Cr3+-O-Cr3+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 95-99
نویسندگان
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