磁致Fe_(78)Si_9B_(13)非晶合金纳米晶化磁矩的理论计算  

Theoretical Calculation of Magnetic Moment of Fe_(78)Si_9B_(13) Amorphous Alloy Nanocrystallized by Low Frequency Pulse Magnetic Field

作　　者：周迎春[1,2] 张群[2] 晁月盛[1] 

机构地区：[1]东北大学,辽宁沈阳110004 [2]辽宁工业大学,辽宁锦州121001

出　　处：《稀有金属材料与工程》2009年第10期1791-1796,共6页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(50771025);高等学校博士学科点专项科研基金(20020145009)

摘　　要：用低频脉冲磁场处理非晶Fe78Si9B13合金,在低温下发生了纳米晶化,利用Mssbauer谱和LDJ9600震动样品磁强计进行了微结构和磁性分析。借助于固体与分子经验电子理论中的BLD方法,计算了非晶Fe78Si9B13合金磁致低温纳米晶化前后的价电子结构,并算出了磁矩,其理论计算值与实验测定值的误差小于7%,满足一级近似要求,说明从价电子层次上计算非晶合金的磁矩是可以实现的。The amorphous Fe78Si9Bl3 alloy was treated by low frequency pulse magnetic field （LFPMF） and nanocrystallized at a low temperature. The microstructures and the magnetic properties of the untreated and treated alloys were analyzed by Mossbauer spectra and LDJ9600 vibrating sample magnetometer （VSM）. The valence electron structures and the magnetic moment of the unnanocrystallized and nanocrystallized amorphous alloys were calculated using the method of Bond Length Difference （BLD） of the Empirical Electron Theory （EET） of solids and molecules. The error of the computed value in theory and experimental value of the magnetic moment is less than 7%, which satisfies the demand of first approximation, indicating that it can be realized that magnetic moment of amorphous alloy is calculated on the valence electron level

关 键 词：非晶Fe78Si9B13合金 低频脉冲磁场 价电子结构 磁矩 

分 类 号：TG139.8[一般工业技术—材料科学与工程]