DocumentCode :
1451228
Title :
Magnetic Properties of Iron Selenide Nanocrystals Synthesized by the Thermal Decomposition
Author :
Lin, Chun-Rong ; Siao, Yu-Jhan ; Lu, Shin-Zong ; Gau, Chie
Author_Institution :
Dept. of Mech. Eng., Southern Taiwan Univ., Tainan, Taiwan
Volume :
45
Issue :
10
fYear :
2009
Firstpage :
4275
Lastpage :
4278
Abstract :
Iron selenide nanocrystals with hexagonal (H) and monoclinic (M) NiAs-like structure were synthesized via a one-pot thermal decomposition of ferrous chloride and Se powder in oleylamine. Magnetic measurements indicate that the Curie temperature of the synthesized hexagonal phase and monoclinic phase is 453 K and 340 K, respectively. The obtained magnetization sigma1.1tau (300 K) for H-phase and M-phase are respectively 9.6 and 6.9 emu/g. Moreover, for the H-phase nanocrystals the spin-rotation process occurs abruptly at about 130 K, while the process does not take place in the case of M-phase.
Keywords :
Curie temperature; iron compounds; magnetisation; nanofabrication; nanostructured materials; pyrolysis; Curie temperature; Fe3Se4; ferrous chloride; hexagonal-like structure; iron selenide nanocrystal synthesis; magnetic properties; magnetization; monoclinicNiAs-like structure; oleylamine; spin-rotation process; temperature 340 K; temperature 453 K; thermal decomposition; Coercivity; Curie temperature; nanocrystals; spin-rotation;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2009.2025256
Filename :
5257314
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1451228
بازگشت