SQUID magnetometer

固体和液体物质的磁强计是开壳金属配合物化学、生物无机配位化学、固体和材料物理中最重要的研究方法之一。因此，在申请人（即Göttingen的一组化学家和物理学家）的许多研究项目中，经常对空气和湿度非常敏感的样品进行磁测量。在分子化学领域，可以阐明决定金属配合物的反应性和性质的电子结构，并可以分析单分子磁性或自旋交叉等特殊磁现象。固态物理计划的研究项目集中在薄氧化钙钛矿层和异质结构的独特电子和磁性，以及它们的应用潜力。现有的SQUID磁力计，由无机化学研究所（Meyer集团）和I.物理研究所共同操作了15年，现在很容易失效。此外，由于这类设备的制造在2013年停止，更换部件的采购变得越来越困难和昂贵。因此，这里要求的现代SQUID磁力计被认为是替代品。这也说明了样品数量的显著增加和对高精度测量的日益增长的需求，因为无机化学研究所的许多研究小组现在正在研究磁化学方面的问题。因此，所要求的设备应提供必要的额外设备-例如，压力电池，玻璃纤维样品夹和光源，以及交流磁化率测量选项-以解决当前和计划中的研究项目中的具体问题。

Magnetometry of both solid and liquid substances is among the most important research methods in the chemistry of open-shell metal complexes, bioinorganic coordination chemistry, and solid-state and material physics. Consequently, in numerous research projects of the applicants, viz. a group of chemists and physicists from Göttingen, magnetic measurements are routinely carried out, often on very air- and moisture-sensitive samples. In the field of molecular chemistry, the electronic structures of metal complexes that determine their reactivity and properties can be elucidated, and special magnetic phenomena such as single-molecule magnetism or spin-crossover can be analyzed. Planned research projects in solid state physics focus on the unique electronic and magnetic properties of thin oxide perovskite layers and heterostructures, as well as on their application potential. The existing SQUID magnetometer, which has been operated jointly by the Institute of Inorganic Chemistry (Meyer group) and the I. Physics Institute for 15 years, is now susceptible to failure. In addition, as the manufacturing of this type of device ceased in 2013, the procurement of replacement components is becoming increasingly difficult and costly. The modern SQUID magnetometer requested here is therefore considered as a replacement. It also accounts for the significant increase in sample numbers and the growing demand for high-precision measurements, since magneto-chemical aspects are now being investigated in a much larger number of research groups in the Institute of Inorganic Chemistry. Therefore, the requested device should be provided with the necessary additional equipment – e.g., with a pressure cell, a glass fiber sample holder and light source, and the AC susceptibility measurements option – to address specific questions from current and planned research projects.