کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5457360 | 1515542 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic and electric characterization of multiferroic organometallic compound [(CH3)2NH2]Mn0.5Ni0.5(HCOO)3
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
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چکیده انگلیسی
[(CH3)2NH2]Mn0.5Ni0.5(HCOO)3 is prepared via solvothermal method. Phase purity and crystal structures are determined at room temperature using powder X-ray diffraction. Temperature variation of magnetization and isothermal field variation of magnetization indicate antiferromagnetic ordering with weak ferromagnetism. This is possibly induced by spin canting. Thermally activated relaxation is observed which is attributed to ordering of dimethylamine cation. This is associated with first order improper antiferroelectric transition. Temperature dependence of polarization and its spontaneity has been confirmed from pyroelectric current measurements. Effect of electric ordering is clearly reflected in impedance spectroscopy data. Two regions are distinct above and below electric ordering temperature which are demarcated by the magnitude of resistance and capacitance of equivalent circuit model and activation energy. Co-existence of magnetic and electric ordering at low temperature is a signature of multiferroic phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 261, August 2017, Pages 1-5
Journal: Solid State Communications - Volume 261, August 2017, Pages 1-5
نویسندگان
Tirthankar Chakraborty, Suja Elizabeth,