Visiting Fellowship for Professor A. Taraphder: Theory of magnetism with temporal disorder applied to magnetically doped ZnO

A. Taraphder 教授访问学者：磁性掺杂 ZnO 中的时间无序磁性理论

• 批准号: EP/G001804/1
• 负责人: Gillian Gehring
• 金额: $ 3.41万
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FG001804%2F1
• 关键词: Visiting; Fellowship; Professor; A.; Taraphder

We need to understand a new class of magnetic materials, magnetic semiconductors, because they have a very high potential in a new subject called spintronics. These materials have the potential to perform both the functions of a semiconductor to process data and a magnetic to store the data.The particular class of compounds based ZnO with a small amount of a transition metal added is particularly promising because they are ferromagnetic at room temperature.However there is a major puzzle: sometimes the magnetism is enhanced when more impurities are added and sometimes the magnetism goes away.In this project we shall investigate if a particular mechanism for this is valid. Understanding this aspect of the magnets will be a very important step towards being able to optimise them for use in spintronics devices. This project is to bring an excellent Indian physicist, Professor Taraphder, to Sheffield to work with the leader of the main UK group working on ZnO in order to solve this problem.

我们需要了解一类新型磁性材料，即磁性半导体，因为它们在自旋电子学这一新学科中具有非常高的潜力。这些材料有潜力执行半导体处理数据和磁性存储数据的功能。添加少量过渡金属的基于 ZnO 的特殊化合物类别特别有前途，因为它们在室温下具有铁磁性然而，存在一个主要难题：有时，当添加更多杂质时，磁性会增强，有时磁性会消失。在这个项目中，我们将研究特定的机制是否有效。了解磁铁的这一方面将是朝着能够优化它们以用于自旋电子器件的方向迈出的非常重要的一步。该项目旨在将一位优秀的印度物理学家Taraphder教授带到谢菲尔德，与英国主要研究氧化锌小组的负责人合作，以解决这个问题。