Effect of cobalt doping on the structural, magnetic and abnormal thermal expansion properties of NaZn13-type La(Fe1−xCox)11.4Al1.6 compounds. Issue 30 (14th July 2016)

• Record Type: Journal Article
• Authors: Zhao, Yuqiang; Huang, Rongjin; Li, Shaopeng; Wang, Wei; Jiang, Xingxing; Lin, Zheshuai; Li, Jiangtao; Li, Laifeng
• Is Part Of: Physical chemistry chemical physics. Volume 18:Issue 30(2016)
• Page Start: 20276
• Page End: 20280
• Publication Date: 2016-07-14
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c6cp03221d
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Abnormal thermal expansion behavior mainly depends on their special structural and magnetic properties for La(Fe1− x Co x )11.4 Al1.6 compounds. Abstract : Cubic NaZn13 -type La(Fe1− x Co x )11.4 Al1.6 compounds were synthesized and extensively explored through crystal structure and magnetization analyses. By optimizing the chemical composition, the isotropic abnormal properties of excellent zero and giant negative thermal expansion in a pure form were both found at different temperature ranges through room temperature. Moreover, the temperature regions with the remarkable abnormal thermal expansion (ATE) properties have been broadened which are controlled by the d M /d T . The present study demonstrates that the ATE behavior mainly depends on special structural and magnetic properties. These diverse properties suggest the high potential of La(Fe1− x Co x )11.4 Al1.6 for the development of abnormal expansion materials.