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

我们需要了解一类新的磁性材料，磁性半导体，因为它们在一个叫做自旋电子学的新学科中具有很高的潜力。这些材料具有执行半导体处理数据和磁性存储数据的功能的潜力。添加少量过渡金属的特殊类型的ZnO化合物特别有前途，因为它们在室温下具有铁磁性。然而，有一个主要的难题：有时添加更多的杂质会增强磁性，有时磁性会消失。在这个项目中，我们将研究一种特定的机制是否有效。了解磁体的这方面将是一个非常重要的一步，朝着能够优化它们用于自旋电子学设备。这个项目是为了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ZnO小组的负责人一起工作，以解决这个问题。

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.