Resolving the Origin of Pseudo-Single Domain Magnetic Behavior

doi:10.1002/2017JB014860

	Resolving the Origin of Pseudo-Single Domain Magnetic Behavior
	Roberts, Andrew P.1; Almeida, Trevor P.2; Church, Nathan S.3; Harrison, Richard J.4; Heslop, David 1; Li, Yiliang 5; Li, Jinhua 6; Muxworthy, Adrian R.7; Williams, Wyn 8; Zhao, Xiang 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
	2017-12-01
卷号	122 期号:12 页码:9534-9558
关键词	Pseudo Single Domain Single Domain Vortex Multivortex Antivortex Multidomain
ISSN号	2169-9313
DOI	10.1002/2017JB014860
文献子类	Article
英文摘要	The term pseudo-single domain (PSD) has been used to describe the transitional state in rock magnetism that spans the particle size range between the single domain (SD) and multidomain (MD) states. The particle size range for the stable SD state in the most commonly occurring terrestrial magnetic mineral, magnetite, is so narrow (similar to 20-75nm) that it is widely considered that much of the paleomagnetic record of interest is carried by PSD rather than stable SD particles. The PSD concept has, thus, become the dominant explanation for the magnetization associated with a major fraction of particles that record paleomagnetic signals throughout geological time. In this paper, we argue that in contrast to the SD and MD states, the term PSD does not describe the relevant physical processes, which have been documented extensively using three-dimensional micromagnetic modeling and by parallel research in material science and solid-state physics. We also argue that features attributed to PSD behavior can be explained by nucleation of a single magnetic vortex immediately above the maximum stable SD transition size. With increasing particle size, multiple vortices, antivortices, and domain walls can nucleate, which produce variable cancellation of magnetic moments and a gradual transition into the MD state. Thus, while the term PSD describes a well-known transitional state, it fails to describe adequately the physics of the relevant processes. We recommend that use of this term should be discontinued in favor of vortex state, which spans a range of behaviors associated with magnetic vortices.
WOS关键词	REVERSAL CURVE DIAGRAMS ; GRAIN-SIZE LIMITS ; HYSTERESIS PROPERTIES ; LOW-TEMPERATURE ; ROCK-MAGNETISM ; ELECTRON HOLOGRAPHY ; FORC DIAGRAMS ; THERMOREMANENT MAGNETIZATION ; REMANENT MAGNETIZATION ; PARTICLES IMPLICATIONS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000423129200038
资助机构	Australian Research Council(DP160100805) ; Australian Research Council(DP160100805) ; Australian Research Council(DP160100805) ; Australian Research Council(DP160100805) ; Australian Research Council(DP160100805) ; Australian Research Council(DP160100805) ; Australian Research Council(DP160100805) ; Australian Research Council(DP160100805)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82512]
专题	中国科学院地质与地球物理研究所
通讯作者	Roberts, Andrew P.
作者单位	1.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia 2.Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland 3.Norwegian Univ Sci & Technol, Dept Geosci & Petr, Trondheim, Norway 4.Univ Cambridge, Dept Earth Sci, Cambridge, England 5.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China 6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 7.Imperial Coll London, Dept Earth Sci & Engn, London, England 8.Univ Edinburgh, Grant Inst Earth Sci, Edinburgh, Midlothian, Scotland
推荐引用方式 GB/T 7714	Roberts, Andrew P.,Almeida, Trevor P.,Church, Nathan S.,et al. Resolving the Origin of Pseudo-Single Domain Magnetic Behavior[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2017,122(12):9534-9558.
APA	Roberts, Andrew P..,Almeida, Trevor P..,Church, Nathan S..,Harrison, Richard J..,Heslop, David.,...&Zhao, Xiang.(2017).Resolving the Origin of Pseudo-Single Domain Magnetic Behavior.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,122(12),9534-9558.
MLA	Roberts, Andrew P.,et al."Resolving the Origin of Pseudo-Single Domain Magnetic Behavior".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 122.12(2017):9534-9558.