کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5447479 | 1511505 | 2017 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Observation of weak ferromagnetism and the sizable magnetocaloric effect in Co2V2O7
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Observation of weak ferromagnetism and the sizable magnetocaloric effect in Co2V2O7 Observation of weak ferromagnetism and the sizable magnetocaloric effect in Co2V2O7](/preview/png/5447479.png)
چکیده انگلیسی
The magnetic behavior of cobalt pyrovanadate compound Co2V2O7 with dichromate structure is reported. The compound undergoes long range magnetic ordering below TC=8Â K and our study identifies the ground state to be a canted antiferromagnetic type with a weak ferromagnetic component. The transition at TC is found to be first-order in nature as evident from the presence of distinct thermal hysteresis in the temperature dependent magnetization data. Below TC, a significantly large value of magnetic relaxation is observed which is possibly due to the metastability associated with the first order phase transition. Interestingly, the sample exhibits a sizable magneto-caloric effect around TC (â¼4.1Â JÂ kgâ1. Kâ1 for 50Â kOe of field change) which is reasonably high among antiferromagnetic transition metal oxides with weak ferromagnetism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 101, February 2017, Pages 1-4
Journal: Journal of Physics and Chemistry of Solids - Volume 101, February 2017, Pages 1-4
نویسندگان
J. Sannigrahi, S. Giri, S. Majumdar,