High-resolution transmission electron microscopy and bulk magnetometry study of LaFe_(11.5)Si_(1.5) compound  

作　　者：邹君鼎 李卫 沈保根 

机构地区：[1]Division of Functional Materials, Central Iron and Steel Research Institute [2]State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences

出　　处：《Chinese Physics B》2009年第10期4366-4369,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 50801015);the National High Technology Research and Development Program of China (Grant No 2007AA03Z458)

摘　　要：This paper studies the microstructural and magnetic properties of LaFe11.5Si1.5 compound by means of highresolution transmission electron microscope and bulk magnetometry measurements. The crystalline structure is accompanied with the noncrystalline and nanocrystalline structures. This characteristic is the reflection of the crystalline process held by quenching. The inverse susceptibilities diverge and deviate from Curie-Weiss law under low applied magnetic fields. This paper proposes the possible mechanism between the anomalous susceptibilities and microstructure, and offers a perspective on the magnetic properties of metastable intermetallic compounds.This paper studies the microstructural and magnetic properties of LaFe11.5Si1.5 compound by means of highresolution transmission electron microscope and bulk magnetometry measurements. The crystalline structure is accompanied with the noncrystalline and nanocrystalline structures. This characteristic is the reflection of the crystalline process held by quenching. The inverse susceptibilities diverge and deviate from Curie-Weiss law under low applied magnetic fields. This paper proposes the possible mechanism between the anomalous susceptibilities and microstructure, and offers a perspective on the magnetic properties of metastable intermetallic compounds.

关 键 词：high-resolution transmission electron micropscope magnetic susceptibility 

分 类 号：O614.331[理学—无机化学]