کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7956781 | 1513838 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Exchange couplings calculation in A2CrMoO6(A= Sr, Ca) Double Perovskites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Exchange couplings calculation in A2CrMoO6(A= Sr, Ca) Double Perovskites Exchange couplings calculation in A2CrMoO6(A= Sr, Ca) Double Perovskites](/preview/png/7956781.png)
چکیده انگلیسی
Exchange couplings in A2CrMoO6 (A = Sr, Ca) Double Perovskites have been calculated for the first time by using a Monte Carlo Simulation and a relation between internal energy per site and magnetization per site. This work shows how effects of A-site substitution could be captured by an overall scaling factor 'alpha', which allows to deduce a numerical estimation of exchange couplings in question. Thermal dependence of magnetization per site, magnetic susceptibility, internal energy per site and specific heat have been investigated. Super Exchange coupling has been found equal to â7,488meV in the presence of Sr and â1,977meV in the presence of Ca. Double Exchange couplings corresponding respectively to Cr and Mo sublattices have been found equal to 17.473meV and 5.611meV in the presence of Sr and 4.614meV and 1.481meV in the presence of Ca. Internal energy per site for both materials at low temperatures has been given.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Condensed Matter - Volume 13, December 2017, Pages 83-86
Journal: Computational Condensed Matter - Volume 13, December 2017, Pages 83-86
نویسندگان
O. El Rhazouani, A. Slassi,