Shell/core structure and magnetic properties of carbon-coated Fe-Co(C) nanocapsules | |
Z. D. Zhang; J. G. Zheng; I. Skorvanek; G. H. Wen; J. Kovac; F. W. Wang; J. L. Yu; Z. J. Li; X. L. Dong; S. R. Jin; W. Liu; X. X. Zhang | |
2001 | |
Source Publication | Journal of Physics-Condensed Matter
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ISSN | 0953-8984 |
Volume | 13Issue:9Pages:1921-1929 |
Abstract | Shell-core structures of Fe(C), Co(C) and Fe-Co(C) nanocapsules, prepared by an are discharge process in a mixture of methane and helium, have been demonstrated by means of high-resolution transmission electron microscopy (HRTEM). These nanoscale magnetic cores are protected by graphite shells. It has been found that the zero-field-cooled (ZFC) magnetization of Fe-Co(C) nanocapsules that display different characteristics in three temperature ranges can be well interpreted in terms of the unblocking of magnetization of small single-domain particles and the depinning of large multidomain particles. The saturation magnetization of these nanocapsules decreases monotonically, while the coercivity decreases significantly with increasing temperature. |
description.department | acad sinica, inst met res, int ctr mat phys, shenyang 110015, peoples r china. univ liverpool, dept engn, liverpool l69 3gh, merseyside, england. slovak acad sci, inst expt phys, kosice 04353, slovakia. hong kong univ sci & technol, dept phys, kowloon, hong kong, peoples r china. shenyang polytech univ, lab ultrafine particles, shenyang 110023, peoples r china.;zhang, zd (reprint author), acad sinica, inst met res, int ctr mat phys, shenyang 110015, peoples r china |
Keyword | Nanostructured Materials Nanotubes C-60 |
URL | 查看原文 |
WOS ID | WOS:000167519500018 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.imr.ac.cn/handle/321006/36924 |
Collection | 中国科学院金属研究所 |
Recommended Citation GB/T 7714 | Z. D. Zhang,J. G. Zheng,I. Skorvanek,et al. Shell/core structure and magnetic properties of carbon-coated Fe-Co(C) nanocapsules[J]. Journal of Physics-Condensed Matter,2001,13(9):1921-1929. |
APA | Z. D. Zhang.,J. G. Zheng.,I. Skorvanek.,G. H. Wen.,J. Kovac.,...&X. X. Zhang.(2001).Shell/core structure and magnetic properties of carbon-coated Fe-Co(C) nanocapsules.Journal of Physics-Condensed Matter,13(9),1921-1929. |
MLA | Z. D. Zhang,et al."Shell/core structure and magnetic properties of carbon-coated Fe-Co(C) nanocapsules".Journal of Physics-Condensed Matter 13.9(2001):1921-1929. |
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