| Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge | |
| C. Y. You; Z. Q. Yang; Q. F. Xiao; I. Skorvanek; J. Kovac; Z. J. Li; W. Liu; Z. D. Zhang | |
| 2004 | |
| Source Publication | European Physical Journal-Applied Physics
 |
| ISSN | 1286-0042 |
| Volume | 28Issue:1Pages:73-77 |
| Abstract | The structure and magnetic properties of the nanoparticles of immiscible system Co20Cu80 prepared by means of arc-discharge, have been studied in detail. The diameters of the particles are about 20similar to30 nm and a core/shell structure forms. The cores are Co-Cu solutions, which show some small Co precipitates, encapsulated with a shell of cupper oxide or cobalt oxide as observed by means of high-resolution transmission electron microscope (HRTEM) and energy dispersive X-ray (EDS). The loop shift in the hysteresis loop indicates the existence of the exchange bias between ferromagnetic and antiferromagnetic components at low temperatures. A block temperature about 180 K has been observed for as-deposited nanoparticles. For the annealed nanoparticles, the thermal magnetization at low temperatures is satisfied with Bloch's law. |
| description.department | chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. slovak acad sci, inst expt phys, kosice 04353, slovakia. shenyang polytech univ, lab ultrafine particles, shenyang 110023, peoples r china.;you, cy (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;cyyou75@hotmail.com |
| Keyword | Giant Magnetoresistance Granular Ribbons Iron Nanoparticles Particles Alloys Fe Films Electrodeposition |
| URL | 查看原文 |
| WOS ID | WOS:000224804900008 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/35689 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | C. Y. You,Z. Q. Yang,Q. F. Xiao,et al. Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge[J]. European Physical Journal-Applied Physics,2004,28(1):73-77. |
| APA | C. Y. You.,Z. Q. Yang.,Q. F. Xiao.,I. Skorvanek.,J. Kovac.,...&Z. D. Zhang.(2004).Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge.European Physical Journal-Applied Physics,28(1),73-77. |
| MLA | C. Y. You,et al."Structural and magnetic characterization of Co-Cu nanoparticles prepared by arc-discharge".European Physical Journal-Applied Physics 28.1(2004):73-77. |
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