Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1528185 | Materials Chemistry and Physics | 2006 | 4 Pages |
Abstract
The preparation and magnetic properties of three rare earth ions-modified multi-walled carbon nanotubes (MWNTs) were discussed. The materials MWNT-X3+ (X = Nd, Gd, Er) were prepared by the coordination of rare earth ions and oxidized MWNTs. A novel magnetic phenomena was observed at the applied field of 30 k Oe and at T = 4 K. With the increase of temperature, the value of magnetization decreases from positive to negative, and the magnetic state changes from quasi-ferromagnetism to diamagnetism, which does not follow the behaviors of conventional ferromagnets.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Bingjing He, Weilin Sun, Miao Wang, Zhiquan Shen,