کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1595078 | 1515707 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spin state transition in the ferromagnet Sr0.9Ce0.1CoO2.85
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spin state transition in the ferromagnet Sr0.9Ce0.1CoO2.85 Spin state transition in the ferromagnet Sr0.9Ce0.1CoO2.85](/preview/png/1595078.png)
چکیده انگلیسی
The sample Sr0.9Ce0.1CoO2.85, prepared by a chemical method, has a cubic perovskite structure with lattice parameter, a=3.8368(2)Å. The effective magnetic moment obtained from temperature dependent paramagnetic susceptibility suggests that the cobalt ions, Co3+ (50%) and Co4+ (50%), are in the intermediate spin states (IS), Co3+ (t2g5eg1) and Co4+ (t2g4eg1). Further, this compound undergoes a ferromagnetic as well as a metal–metal transition at TC∼160TC∼160 K which coincides with a spin state transition of cobalt ions that is likely to be associated with the IS state of Co3+ (t2g5eg1) ions going to the low spin (LS) state (t2g6eg0) as inferred from the softening of infrared optical phonons.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 146, Issues 3–4, April 2008, Pages 110–114
Journal: Solid State Communications - Volume 146, Issues 3–4, April 2008, Pages 110–114
نویسندگان
R.V.K. Mangalam, G.K. Pradhan, Chandrabhas Narayana, A. Sundaresan,