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Competition of Order-Disorder in Ferrimagnetic Materials(PDF)

《南京师大学报(自然科学版)》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2011年03期
Page:
54-57
Research Field:
物理学
Publishing date:

Info

Title:
Competition of Order-Disorder in Ferrimagnetic Materials
Author(s):
Qi Shuo1Cheng Taimin12Wang Lizhi1
1.Department of Mathematics and Physics,Shenyang University of Chemical Technology, 2.School of Material Science and Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China
Keywords:
order energythermal disorder energycold disorder energyspontaneous magnetization theoryferrimagnetic materials
PACS:
O482.524
DOI:
-
Abstract:
On the basis of spontaneous magnetization theory in the ferrimagnetic material,we introduced cold disorder energy and built the system with competition of order energy,thermal disorder energy,and cold disorder energy. For ferrimagnetic materials,by the introduction of cold disorder energy,we obtain magnetic phase transition Néel temperature TN of the ferrimagnetic material, the ratio of related energy kBTN and the order energy Eorder , the ratio of the cold disorder Ed and order energy Ed Eorder . Thus we found that when paramagnetic Curie temperature related kBθp is much greater than the order energy Eorder ,it will easily lead to the competition between the ordering and disordering in ferrimagnetic materials. As κNθ = Eorder kBθP gets smaller,in region with large kBTN Eorder ,competition between order and disorder becomes more pronounced.

References:

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Last Update: 2011-09-15