Spin-current generation based on ambipolar diffusion in magnetic materials

基于磁性材料中双极扩散的自旋电流产生

• 批准号: 23656012
• 负责人: YOSHINO Junji
• 金额: $ 2.58万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656012/
• 关键词: スピントロニクス; 熱電材料; スピン流; バイポーラ拡散; 熱電効果; スピントロニクス; 熱電材料; スピン流; バイポーラ拡散; 熱電効果

We have made search to obtain novel materials which have electron conduction in majority spin band and hole conduction in minority band, which offer a novel method for achieving effective spin current generation by temperature gradient, based on first principle electronic structure calculation. Our theoretical studies suggest that Mn, Fe and Co doped GaMnAs and Mn-doped InAs/GaSb superlattices are the good candidates for the purpose. However, experimental evidence has not been obtained yet.

我们已经进行了搜索以获取新的材料，这些新材料在多数自旋带和少数族裔带中具有电子传导，这为基于第一原理电子结构计算提供了一种新的方法，可通过温度梯度实现有效的自旋电流产生。我们的理论研究表明，MN，FE和CO掺杂的Gamnas和Mn掺杂的INAS/GASB超晶格是该目的的好候选者。但是，尚未获得实验证据。