Scanning SQUID microscope with an in-situ magnetization/demagnetization field for geological samples

doi:10.1016/j.physc.2018.01.014

	Scanning SQUID microscope with an in-situ magnetization/demagnetization field for geological samples
	Du, Junwei 1,2; Liu, Xiaohong 1; Qin, Huafeng 3; Wei, Zhao 1,2; Kong, Xiangyang 1,2; Liu, Qingsong 3; Song, Tao 1,2
刊名	PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
	2018-04-15
卷号	547 页码:1-6
关键词	Rock magnetism SQUID Scanning microscope Magnetization/demagnetization
ISSN号	0921-4534
DOI	10.1016/j.physc.2018.01.014
文献子类	Article
英文摘要	Magnetic properties of rocks are crucial for paleo-, rock-, environmental-magnetism, and magnetic material sciences. Conventional rock magnetometers deal with bulk properties of samples, whereas scanning microscope can map the distribution of remanent magnetization. In this study, a new scanning microscope based on a low-temperature DC superconducting quantum interference device (SQUID) equipped with an in-situ magnetization/demagnetization device was developed. To realize the combination of sensitive instrument as SQUID with high magnetizing/demagnetizing fields, the pick-up coil, the magnetization/demagnetization coils and the measurement mode of the system were optimized. The new microscope has a field sensitivity of 250 pT/v Hz at a coil-to-sample spacing of similar to 350 mu m, and high magnetization (0-1 T)/demagnetization (0-300 mT, 400 Hz) functions. With this microscope, isothermal remanent magnetization (IRM) acquisition and the according alternating field (AF) demagnetization curves can be obtained for each point without transferring samples between different procedures, which could result in position deviation, waste of time, and other interferences. The newly-designed SQUID microscope, thus, can be used to investigate the rock magnetic properties of samples at a micro-area scale, and has a great potential to be an efficient tool in paleomagnetism, rock magnetism, and magnetic material studies. (c) 2018 Elsevier B.V. All rights reserved.
WOS关键词	ISOTHERMAL REMANENCE ; TEMPERATURE ; ROOM
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000427566300001
资助机构	National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; State Key Program of the National Natural Science Foundation of China(51037006) ; State Key Program of the National Natural Science Foundation of China(51037006) ; National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; State Key Program of the National Natural Science Foundation of China(51037006) ; State Key Program of the National Natural Science Foundation of China(51037006) ; National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; State Key Program of the National Natural Science Foundation of China(51037006) ; State Key Program of the National Natural Science Foundation of China(51037006) ; National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; National Science & Technology Support Program of the Ministry of Science and Technology of China(2015BAI01B07) ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; Chinese Academy of Sciences Scientific Research Equipment Development Project ; State Key Program of the National Natural Science Foundation of China(51037006) ; State Key Program of the National Natural Science Foundation of China(51037006)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82994]
专题	中国科学院地质与地球物理研究所
通讯作者	Song, Tao
作者单位	1.Chinese Acad Sci, Inst Elect Engn, Beijing Key Lab Bioelectromagnetism, Beijing 100090, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Du, Junwei,Liu, Xiaohong,Qin, Huafeng,et al. Scanning SQUID microscope with an in-situ magnetization/demagnetization field for geological samples[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2018,547:1-6.
APA	Du, Junwei.,Liu, Xiaohong.,Qin, Huafeng.,Wei, Zhao.,Kong, Xiangyang.,...&Song, Tao.(2018).Scanning SQUID microscope with an in-situ magnetization/demagnetization field for geological samples.PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,547,1-6.
MLA	Du, Junwei,et al."Scanning SQUID microscope with an in-situ magnetization/demagnetization field for geological samples".PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 547(2018):1-6.