MAGNETIC THERMAL-STABILITY OF MN AND CO VOLUME-DOPED ACICULAR IRON-OXIDE PARTICLES

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	MAGNETIC THERMAL-STABILITY OF MN AND CO VOLUME-DOPED ACICULAR IRON-OXIDE PARTICLES
	HAN, DH ; WANG, JP ; FENG, YB ; LUO, HL ; NA, JG
刊名	IEEE TRANSACTIONS ON MAGNETICS
	1994
卷号	30 期号:6 页码:4098
ISSN号	0018-9464
通讯作者	HAN, DH: CHINESE ACAD SCI, INST PHYS, STATE KEY LAB MAGNET, BEIJING 100080, PEOPLES R CHINA.
中文摘要	The magnetic thermal stability of Mn and Co volume-doped acicular gamma-Fe2O3 particles was studied. These MnCo-gamma-Fe2O3 particles with a coercivity about 950 Oe and Co content about 3.5 wt % have been prepared by high temperature ion diffusing and step annealing. The MnCo-gamma-Fe2O3 particles exhibit a much higher transverse field stability than that of Co-gamma-Fe2O3 particles. The induced effective uniaxial anisotropy constant, K-u and the magnetocrystalline anisotropy constant, K-1 of the particles were determined by the analysis of torque curves. The high magnetic thermal stability of these particles is mainly due to the higher and more stable induced uniaxial anisotropy, which Is the result of the anisotropic arrangements of cobalt ions promoted by the presence of manganese ions during the step annealing. The MnCo-gamma-Fe2O3 particles show a smaller irreversible decrease of uniaxial anisotropy with temperature and time in a magnetic field.
收录类别	SCI
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/41438]
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	HAN, DH,WANG, JP,FENG, YB,et al. MAGNETIC THERMAL-STABILITY OF MN AND CO VOLUME-DOPED ACICULAR IRON-OXIDE PARTICLES[J]. IEEE TRANSACTIONS ON MAGNETICS,1994,30(6):4098.
APA	HAN, DH,WANG, JP,FENG, YB,LUO, HL,&NA, JG.(1994).MAGNETIC THERMAL-STABILITY OF MN AND CO VOLUME-DOPED ACICULAR IRON-OXIDE PARTICLES.IEEE TRANSACTIONS ON MAGNETICS,30(6),4098.
MLA	HAN, DH,et al."MAGNETIC THERMAL-STABILITY OF MN AND CO VOLUME-DOPED ACICULAR IRON-OXIDE PARTICLES".IEEE TRANSACTIONS ON MAGNETICS 30.6(1994):4098.