کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1802667 1024602 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The exchange bias and coercivity of FM/AFM films: Monte Carlo simulation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
The exchange bias and coercivity of FM/AFM films: Monte Carlo simulation
چکیده انگلیسی

The exchange bias (HE) and coercivity (HC) of the ferromagnet/antiferromagnet (FM/AFM) films have been simulated with Monte Carlo method. The simulated results indicate that, the value of HE decreases with increasing temperature, and the values of HE and the blocking temperature Tb at which HE=0 reduce evidently with decreasing absolute value of interlayer exchange coupling JI. It also is found that for the large absolute values of JI, the maximum in HC occurs very close to Tb. At the same time, it is observed that the diluted ratio of FM at FM/AFM interface influences clearly the value of HE. The simulated results are consistent with the experimental facts. The maximum behaviour in the HC−T curves has been explained by the interplay of the softening of some fraction of the spins in the AFM layer near TN′ and the disorder of the spins in FM layer near Curie temperature TC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 303, Issue 2, August 2006, Pages e180–e183
نویسندگان
, , , , ,