High-resolution transmission electron microscopy and bulk magnetometry study of LaFe11.5Si1.5 compound
Zou Jun-Ding(邹君鼎)a)†, Li Wei(李卫)a), and Shen Bao-Gen(沈保根)b)
a Division of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081, China; b State Key Laboratory for Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Abstract This paper studies the microstructural and magnetic properties of LaFe11.5Si1.5 compound by means of high-resolution 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.
Received: 05 November 2008
Revised: 17 March 2009
Accepted manuscript online:
Fund: 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).
Cite this article:
Zou Jun-Ding(邹君鼎), Li Wei(李卫), and Shen Bao-Gen(沈保根) High-resolution transmission electron microscopy and bulk magnetometry study of LaFe11.5Si1.5 compound 2009 Chin. Phys. B 18 4366
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