当前位置: X-MOL 学术Adv. Electron. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Bipolar Magnetic Materials Based on 2D Ni[TCNE] Metal–Organic Coordination Networks
Advanced Electronic Materials ( IF 6.2 ) Pub Date : 2017-12-27 , DOI: 10.1002/aelm.201700323
Yu Chen 1 , Junyi Liu 1 , Qiang Sun 1, 2 , Yoshiyuki Kawazoe 3, 4 , Puru Jena 2
Affiliation  

Bipolar magnetic materials can produce alternative spin currents with 100% spin‐polarization by flexible electrical control, showing great potentials in spintronics. Using first‐principles calculations, it is demonstrated that the 2D metal–organic coordination networks, consisting of tetracyanoethylene (TCNE) molecules and Ni atoms, labeled Ni[TCNE], are bipolar magnetic materials showing rich properties: one isomer named a‐Ni[TCNE] is a bipolar magnetic semiconductor (BMS), and another isomer, p‐Ni[TCNE], behaves like a bipolar magnetic metal (BMM). The proper charge transfer leads to the localized spins at the Ni atoms and delocalized spin magnetic moments on the whole structure and the coupling between the localized spins and the itinerant spins is ferromagnetic. These traits of BMS and BMM in Ni[TCNE] networks add additional features to the family of 2D bipolar magnetic materials. This study paves the way for the design of organic based 2D bipolar magnetic spintronics materials.

中文翻译:

基于二维Ni [TCNE]金属-有机配位网络的双极磁性材料

双极磁性材料可以通过灵活的电气控制产生具有100%自旋极化的替代自旋电流,这在自旋电子学中显示出巨大的潜力。使用第一性原理计算,证明了由四氰基乙烯(TCNE)分子和Ni原子组成的二维金属-有机配位网络,标记为Ni [TCNE],是具有丰富性能的双极磁性材料:一种名为a-Ni [ TCNE]是双极磁性半导体(BMS),另一种异构体p-Ni [TCNE]的行为类似于双极磁性金属(BMM)。适当的电荷转移会导致Ni原子上的局部自旋和整个结构上的离域自旋磁矩,并且局部自旋和巡回旋之间的耦合是铁磁性的。Ni [TCNE]网络中BMS和BMM的这些特性为2D双极磁性材料族增加了其他功能。这项研究为有机基二维二维双极磁性自旋电子材料的设计铺平了道路。
更新日期:2017-12-27
down
wechat
bug