| 查看: 149 | 回复: 0 | |||
| 当前主题已经存档。 | |||
[资源]
Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices
|
|||
|
Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices Title: Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices Authors: Sun, Shouheng; Murray, C. B.; Weller, Dieter; Folks, Liesl; Moser, Andreas Abstract Synthesis of monodisperse iron-platinum (FePt) nanoparticles by reduction of platinum acetylacetonate and decomposition of iron pentacarbonyl in the presence of oleic acid and oleyl amine stabilizers is reported. The FePt particle composition is readily controlled, and the size is tunable from 3- to 10-nanometer diameter with a standard deviation of less than 5%. These nanoparticles self-assemble into three-dimensional superlattices. Thermal annealing converts the internal particle structure from a chemically disordered face-centered cubic phase to the chemically ordered face-centered tetragonal phase and transforms the nanoparticle superlattices into ferromagnetic nanocrystal assemblies. These assemblies are chemically and mechanically robust and can support high-density magnetization reversal transitions. http://www.wit.edu/Academics/em/ ... 645_files%5CIBM.pdf |
回复此楼» 猜你喜欢
体制内长辈说体制内绝大部分一辈子在底层，如同你们一样大部分普通教师忙且收入低
已经有13人回复
-
为什么中国大学工科教授们水了那么多所谓的顶会顶刊，但还是做不出宇树机器人？
已经有8人回复
-
版面费该交吗
已经有8人回复
-
面上可以超过30页吧？
已经有4人回复
-
“人文社科而论，许多学术研究还没有达到民国时期的水平”
已经有5人回复
-
什么是人一生最重要的？
已经有4人回复
-
今年春晚有几个节目很不错，点赞！
已经有12人回复