Recently, controlling the shape of nanoparticles during their fabrication has become a new and interesting research area. In fact, the nanoparticle has been proven that its physical properties are strikingly related to the shape of itself. After finding the carbon nanotubes in 1911, more and more nanostructure materials have been synthesized. The radical nano-scale vanadium oxide VO2.24(C12H14N2)0.061 is synthesized by hydrothermal method.
VO2.24(C12H14N2)0.061 has various physical properties, and we would focus on it¡¦s magnetic properties in the thesis, including magnetic susceptibility and magnetization. The magnetic susceptibility measurements show that the antiferromagnetic transition occurs at T = 20K ~ 25K, and it has been found the specific transition at T = 265K ~ 275K in some samples. Based on the magnetization data, these materials are ferromagnetic, and the hysteresis loops exhibit unusual steps. Whenever these materials process thermal treatments or not, the steps still exist. In addition, we will analyze the impact of the production date, thermal treatment, and preserved environment to discover more colorful properties of these materials.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0624106-163250 |
| Date | 24 June 2006 |
| Creators | Huang, Yi-Fen |
| Contributors | Kuan-Jiuh Lin, Yang-Yuan Chen, Jiunn-Yuan Lin, Hung-Duen Yang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0624106-163250 |
| Rights | unrestricted, Copyright information available at source archive |
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