Large critical magnetic field and tunneling anomaly behavior of superconducting carbon-coated Sn nanorods and nanoparticles

IMR OpenIR

	Large critical magnetic field and tunneling anomaly behavior of superconducting carbon-coated Sn nanorods and nanoparticles
	Z. H. Wang; D. Y. Geng; Z. Han; Z. D. Zhang
	2010
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	108 期号:1
摘要	The arc-discharge process is usually used to synthesize some kinds of metal nanocrystals or nanoparticles all with high melting temperature. Here, the carbon-coated Sn (with a low melting temperature) nanostructured materials with different shapes, such as carbon-coated Sn nanorods with diameter of about 100 and 50 nm and, correspondingly, the length of 500 and 200 nm, and the carbon-coated Sn nanoparticles, are prepared by a modified arc-discharge process. The carbon shells are found to surround these Sn nanostructures. The carbon shell becomes thick with decreasing the size of the Sn nanostructures. The magnetic and electrical transports are affected by the shape of nanocrystals. The critical magnetic field of the carbon-coated Sn nanorods with diameter of 50 nm and length of 200 nm is almost 25 times higher than that of bulk Sn. The superconductivity of the carbon-coated Sn nanoparticles with particle size of 40 nm is destroyed. The zero bias tunneling anomalies was observed in the carbon-coated Sn nanoparticles. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3457843]
部门归属	[wang, z. h.; geng, d. y.; han, z.; zhang, z. d.] chinese acad sci, int ctr mat phys, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wang, zh (reprint author), chinese acad sci, int ctr mat phys, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;zhwang@imr.ac.cn
关键词	Granular Superconductors Electronic-properties Transition Particles Nanowires Nanocomposites Nanocapsules Resistivity Transport Crystals
URL	查看原文
WOS记录号	WOS:000280000400055
引用统计	被引频次：6[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/321006/31555
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. H. Wang,D. Y. Geng,Z. Han,et al. Large critical magnetic field and tunneling anomaly behavior of superconducting carbon-coated Sn nanorods and nanoparticles[J]. Journal of Applied Physics,2010,108(1).
APA	Z. H. Wang,D. Y. Geng,Z. Han,&Z. D. Zhang.(2010).Large critical magnetic field and tunneling anomaly behavior of superconducting carbon-coated Sn nanorods and nanoparticles.Journal of Applied Physics,108(1).
MLA	Z. H. Wang,et al."Large critical magnetic field and tunneling anomaly behavior of superconducting carbon-coated Sn nanorods and nanoparticles".Journal of Applied Physics 108.1(2010).