JIANG Bingzhi,S.G.Min.Critical behaviors of the Fe73.5-xCrxSi13.5B9Nb3Au1(x=0,3,5) amorphous alloys ribbon[J].Journal of Yanbian University,2014,40(03):224-228.
非晶合金Fe73.5-xCrxSi13.5B9Nb3Au1(x=0,3,5)的
- Title:
- Critical behaviors of the Fe73.5-xCrxSi13.5B9Nb3Au1(x=0,3,5) amorphous alloys ribbon
- 分类号:
- TG139+.8
- 文献标志码:
- A
- 摘要:
- 利用修正Arrott图方法研究了类Finemet的非晶合金Fe73.5-xCrxSi13.5B9Nb3Au1(x=0,3,5)的居里温度TC和铁磁-顺磁相变临界指数β,γ和δ.研究显示:所有样品的居里温度和临界指数都能很好地满足临界领域的磁性状态方程; 随着Cr掺量的增加,居里温度逐渐减小; 临界指数β和δ值的变化显示,相变类型从短程相互作用的3D海森堡
- Abstract:
- According to modified Arrott plot method, we analyzed both Curie temperature and ferromagnetic-paramagnetic phase transition critical exponents β,γ and δ of the Finemet-like amorphous alloys Fe73.5-xCrxSi13.5B9Nb3Au1(x=0,3,5). Research shows all critical exponents of samples satisfied magnetic equation of state in the critical region. The results revealed that the Curie temperature is decreasing with increasing of doping amounts of Chromium. From the change of the β and δ, it is further found that the type of phase transition changed from short-range 3D Heisenberg model to long-range mean-field model, which indicated that doping Chromium to the amorphous alloys weakened the magnetic interaction intensities as well as expanded the magnetic interaction range.
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备注/Memo
收稿日期: 2014-06-16作者简介: 姜炳植(1971—),男,副教授,研究方向为磁性材料.