MOLECULAR NANOMAGNETISM: THE FIRST FREQUENCY DOMAIN MAGNETIC RESONANCE SPECTROMETER IN THE UNITED KINGDOM

该提案旨在确定制备更好的单分子磁体的新策略。单分子磁体是由于其磁性各向异性而表现出纯粹分子来源的稳定磁化的分子。它们是自下而上的磁性数据存储材料的有希望的候选材料。其中一个优点是所有的分子都是一样的，粒子的大小没有分布。然而，磁化的阻断温度仍然过低。本文提出研究三种可能具有较高阻滞温度的单分子磁体：第一种是由高各向异性离子组成的磁体，第二种是含有轨道矩离子的磁体，最后一种是含有镧系离子的磁体。我们将使用磁强计和频域磁共振光谱相结合的方法来研究这些系统。后者对英国来说是一种新方法。

This proposal aims to identify novel strategies for preparing better single-molecule magnets. Single-molecule magnets are molecules that show stable magnetisation of purely molecular origin, due to their magnetic anisotropy. They are promising candidates for a bottom-up approach to magnetic data storage materials. One of the advantages is that all the molecules are the same and there is no distribution in the size of the particles. However, the blocking temperature of the magnetisation is still too low. Here we propose to study three classes of single molecule magnets that may show higher blocking temperatures: First of all, those composed of high-anisotropy ions, secondly, those containing ions with an orbital moment, and finally those containing lanthanide ions. We will study these systems using a combination of magnetometry and frequency domain magnetic resonance spectroscopy. The latter is a method that is new to the UK.