Development of Organic Ferromagnets Based on Transition Metal Phthalocyanines

基于过渡金属酞菁的有机铁磁体的开发

• 批准号: 22760531
• 负责人: HONDA Zentaro
• 金额: $ 2.58万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760531/
• 关键词: 有機磁性体; フタロシアニン; 機能材料; 有機磁性; 高キュリー温度; 分子磁性体; 室温強磁; 室温強磁性

A series of organic ferromagnetic materials based on transition metal phthalocyanines (MPcs) doped by alkaline metals are synthesized and the magnetic properties and the crystal structures are investigated. All the samples of MPc, where M=Mn, Fe, Co, Ni, doped by sodium or potassium, show ferromagnetic behavior at room temperature. X-ray diffraction patterns and transmission electron microscopy images suggest that the MPc molecules form three-dimensional random networks in the alkaline metal doped MPc samples. Three-dimensional ferromagnetic interactions between transition metal ions in connected MPc molecules via delocalized π-electrons are proposed to explain the high Curie temperature well above room temperature. We also synthesized the MPc polymers and studied its structure and magnetic properties. Ferromagnetic behavior is also observed in the magnetization measurements at room temperature. These experimental results could be a clue to finding high Curie temperature ferromagnetism in organic materials.

一系列基于过渡金属小细胞的特性和晶体结构的有机铁磁材料。 DOPC样品通过DELAICALE的MPC分子中的过渡金属在高温温度下供应。在有机材料中。

项目成果

Crystal growth of magnetic dihydride GdxY1-xH2 for generation of spin current

用于产生自旋电流的磁性二氢化物 GdxY1-xH2 的晶体生长

• DOI: 10.1016/j.jcrysgro.2012.12.156
• 发表时间: 2013
• 期刊: Journal of Crystal Growth
• 影响因子: 1.8
• 作者: T. Sakuraba;H. Hirama;M. Sakai;Z. Honda;M. Hayakawa;T. Okoshi;A. Kitajima;A. Oshima;K. Higuchi;S. Hasegawa
• 通讯作者: S. Hasegawa

Negative magnetoresistance generated by combination of spin-orbit interaction and applied magnetic field

自旋轨道相互作用和外加磁场相结合产生负磁阻

• DOI: 10.7567/jjap.51.023001
• 发表时间: 2012
• 期刊: Japanease Journal of Applied Physics
• 作者: M. Sakai，D. Kodama，T. Sakuraba;Z. Honda，S. Hasegawa，A. Kitajima，A. Oshima;K. Higuchi;and O. Nakamura
• 通讯作者: and O. Nakamura

アルカリ金属ドープ遷移金属フタロシアニンの磁気特性

碱金属掺杂过渡金属酞菁的磁性

• 发表时间: 2011
• 作者: 岩崎惇;松島康介;大原和也;本多善太郎;香取浩子;鎌田憲彦;福田武司
• 通讯作者: 福田武司

フタロシアニン重合体およびその製造方法

酞菁聚合物及其制备方法

• 发表时间: 2012

遷移金属フタロシアニンポリマーの磁気特性

过渡金属酞菁聚合物的磁性

• 发表时间: 2011
• 作者: 坪谷和彦;花田みなみ;本多善太郎;鎌田憲彦;福田武司;香取浩子;萩原政幸
• 通讯作者: 萩原政幸