Determination of the critical interspacing for the noninteracting magnetic nanoparticle system

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	Determination of the critical interspacing for the noninteracting magnetic nanoparticle system
	Yang, HT ; Liu, HL ; Song, NN ; Du, HF ; Zhang, XQ ; Cheng, ZH ; Shen, J ; Li, LF
刊名	APPLIED PHYSICS LETTERS
	2011
卷号	98 期号:15
关键词	PARTICLE SYSTEM SPIN-GLASSES RELAXATION
ISSN号	0003-6951
通讯作者	Cheng, ZH: Chinese Acad Sci, State Key Lab Magnetism, Beijing 100190, Peoples R China.
中文摘要	The dipole-dipole interactions of monodisperse Fe(3)O(4) nanoparticles (NPs) can be directly controlled by a uniform SiO(2) shell with different thickness, i.e., different interspacings. Thus, the interacting strength of a serial of Fe(3)O(4)-SiO(2) NPs system can be revealed by fitting the blocking temperature TB measured at ac fields to the Vogel-Fulcher law. The interspacing over five times of diameter for less than 8.0 nm Fe(3)O(4) NPs is the critical value to achieve a noninteracting system. Furthermore, a general equation to evaluate critical interspacing for noninteracting magnetic NPs systems with different sizes and saturation magnetizations was calculated by Monte Carlo method. (C) 2011 American Institute of Physics. [doi:10.1063/1.3574917]
收录类别	SCI
资助信息	National Basic Research Program of China (973 program) [2009CB929201, 2010CB934202, 2011CB921801]; National Natural Sciences Foundation of China [51071173, 50931006, 11034004]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/35846]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yang, HT,Liu, HL,Song, NN,et al. Determination of the critical interspacing for the noninteracting magnetic nanoparticle system[J]. APPLIED PHYSICS LETTERS,2011,98(15).
APA	Yang, HT.,Liu, HL.,Song, NN.,Du, HF.,Zhang, XQ.,...&Li, LF.(2011).Determination of the critical interspacing for the noninteracting magnetic nanoparticle system.APPLIED PHYSICS LETTERS,98(15).
MLA	Yang, HT,et al."Determination of the critical interspacing for the noninteracting magnetic nanoparticle system".APPLIED PHYSICS LETTERS 98.15(2011).