Spin texture dynamics in complex structures

这个项目是为了了解自旋纹理的行为，如skyrmion和畴壁在复杂的结构，如合成反铁磁体和多层膜，包括钉扎和不均匀性等影响。磁纹理动力学可以应用于具有非常低的功率耗散的未来存储器和处理设备中。从一个基本的角度来看，仍然有很多不了解的缺陷如何影响自旋织构在原子scale.We将使用微磁和原子模型的组合来研究自旋织构动力学在各种长度尺度上，包括如热波动的影响。我们的目标是了解材料中的缺陷如何改变自由能景观，以及这些缺陷如何钉扎或变形磁性纹理。在凝聚态组中工作将允许与目前正在进行的实验密切重叠。其中一个关键的好处是，通过模拟更现实（不太理想化）的系统，包括粗糙度和钉扎，帮助实验者理解他们的结果。

This project is to understand the behaviour of spin textures such as skyrmions and domain walls in complex structures such a synthetic antiferromagnets and multilayers including effects such as pinning and inhomogeneity. Magnetic texture dynamics may be applied in future memory and processing devices which have very low power dissipation. From a fundamental perspective there is still much which is not understood about how imperfections affect spin textures on an atomic scale.We will use a combination of micromagnetic and atomistic modelling to study spin texture dynamics on a variety of length scales and including effects such as thermal fluctuations. We aim to learn how the free energy landscape is altered by imperfections in the material and how these pin or deform magnetic textures.Working within the condensed matter group will allow a close overlap with experiments currently being performed. One of the key benefits is to help experimentalists understand their results by simulating more realistic (less idealised) systems which include roughness and pinning.