Dynamic hysteresis of magnetic aggregates with non-integer dimension

IMR OpenIR

	Dynamic hysteresis of magnetic aggregates with non-integer dimension
	M. Y. Sun; X. Chen; S. Dong; K. F. Wang; J. M. Liu
	2009
发表期刊	Journal of Magnetism and Magnetic Materials
ISSN	0304-8853
卷号	321 期号:16 页码:2429-2432
摘要	We investigate the dynamic hysteresis of nanoscale magnetic aggregates by employing Monte Carlo simulation, based on Ising model in non-integer dimensional space. The diffusion-limited aggregation (DLA) model with adjustable sticking probability is used to generate magnetic aggregates with different fractal dimension D. It is revealed that the exponential scaling law A(H(0), omega)similar to H(0)(alpha).omega(beta), where A is the hysteresis area, H(0) and omega the amplitude and frequency of external magnetic field, applies to both the low-omega and high-omega regimes, while exponents alpha and beta decrease with increasing D in the low-omega regime and keep invariant in the high-omega regime. A mean-field approach is developed to explain the simulated results. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[sun, m. y.; chen, x.; dong, s.; wang, k. f.; liu, j. -m.] nanjing univ, nanjing natl lab microstruct, nanjing 210093, peoples r china. [sun, m. y.; chen, x.; dong, s.; wang, k. f.; liu, j. -m.] chinese acad sci, int ctr mat phys, shenyang, peoples r china. [liu, j. -m.] s china normal univ, sch phys, guangzhou 510006, guangdong, peoples r china.;liu, jm (reprint author), nanjing univ, nanjing natl lab microstruct, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Dynamic Hysteresis Magnetic Dla Scaling Exponent Diffusion-limited Aggregation Ising-model Phase-transition Simulation Systems Field
URL	查看原文
WOS记录号	WOS:000266036000009
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32310
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Y. Sun,X. Chen,S. Dong,et al. Dynamic hysteresis of magnetic aggregates with non-integer dimension[J]. Journal of Magnetism and Magnetic Materials,2009,321(16):2429-2432.
APA	M. Y. Sun,X. Chen,S. Dong,K. F. Wang,&J. M. Liu.(2009).Dynamic hysteresis of magnetic aggregates with non-integer dimension.Journal of Magnetism and Magnetic Materials,321(16),2429-2432.
MLA	M. Y. Sun,et al."Dynamic hysteresis of magnetic aggregates with non-integer dimension".Journal of Magnetism and Magnetic Materials 321.16(2009):2429-2432.