Spin texture dynamics in complex structures

该项目旨在了解复杂结构中自旋纹理（如skyrmions和畴壁）的行为，如合成反铁磁体和多层结构，包括钉住和不均匀性等效应。磁织构动力学可以应用于未来功耗极低的存储器和处理器件。从基本的角度来看，关于不完美如何影响原子尺度上的自旋织构，仍然有很多不了解的地方。我们将使用微磁和原子建模的组合来研究各种长度尺度上的自旋纹理动力学，包括热波动等效应。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pin或变形磁性纹理的方式。在凝聚态物质组内工作将允许与当前正在进行的实验密切重叠。其中一个关键的好处是，通过模拟更现实的（不太理想的）系统，包括粗糙度和钉住，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.