کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1797972 1524807 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exchange bias in a mixed metal oxide based magnetocaloric compound YFe0.5Cr0.5O3
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Exchange bias in a mixed metal oxide based magnetocaloric compound YFe0.5Cr0.5O3
چکیده انگلیسی


• Canted magnetic state.
• Both inverse and conventional magnetocaloric effect.
• Cooling Field and temperature dependent exchange bias.

We report a detailed investigation of magnetization, magnetocaloric effect and exchange bias studies on a mixed metal oxide YFe0.5Cr0.5O3 belonging to perovskite family. Our results reveal that the compound is in canted magnetic state (CMS) where ferromagnetic correlations are present in an antiferromagnetic state. Magnetic entropy change of this compound follows a power law (∆SM∼Hm) dependence of magnetic field. In this compound, inverse magnetocaloric effect (IMCE) is observed below 260 K while conventional magnetocaloric effect (CMCE) above it. The exponent ‘m’ is found to be independent of temperature and field only in the IMCE region. Investigation of temperature and magnetic field dependence studies of exchange bias, reveal a competition between effective Zeeman energy of the ferromagnetic regions and anisotropic exchange energy at the interface between ferromagnetic and antiferromagnetic regions. Variation of exchange bias due to temperature and field cycling is also investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 414, 15 September 2016, Pages 116–121
نویسندگان
, , ,