FOR 1154: Towards Molecular Spintronics

该研究单位旨在对基于磁性分子的自旋电子器件进行基本了解和实验演示。我们将尝试通过改变分子自旋的排列来切换通过磁性分子的自旋转移。这种雄心勃勃的分子自旋电子学方法结合了有机电子学和分子磁学两个跨学科的研究领域。我们的努力应该是促进原本支离破碎的社区之间富有成效的交流。这将有助于理解各种基本现象和主要物理效应，以及揭开长期存在的科学问题和差异。我们的活动主要集中在：(1)磁性分子的定制和基本特征：用于实现设备的磁性分子将被合成，并通过理论方法和实验通过扫描探针技术以及光学和磁测量进行基础研究。在此阶段，已经考虑了与设备处理有关的基本兼容性方面。(2)分子薄膜和界面的制备、表征和优化：需要开发新的沉积技术来创建适用于各种分子的分子薄膜。将对这些层的结构、形态和分子取向进行表征和优化。实验结果将得到表面分子性质的理论预测的补充。对于器件集成，分子层需要遵守某些边界条件，如长期稳定性和工艺兼容性。基本表征和技术项目之间的持续反馈允许有针对性和高效地合成适用于设备应用的分子和分子膜。(3)器件演示和芯片集成：将使用卷起的纳米技术来制造垂直堆叠的自旋阀。我们的目标是第一次通过掺杂半导体电极接触分子层。我们还将实现一个横向堆叠的三端器件，用于大规模集成目的。

The Research Unit aims at the fundamental understanding and the experimental demonstration of spin electronic devices based on magnetic molecules. We will try to switch the spin transfer through magnetic molecules by changing the alignment of the molecular spins. This ambitious approach towards molecular spintronics combines two interdisciplinary research fields, organic electronics and molecular magnetism. Our endeavours are supposed to stimulate fruitful exchange between otherwise disjunct communities. This will help to understand a variety of fundamental phenomena and major physical effects as well as to unravel long-standing scientific problems and discrepancies. Our activities focus on: (1) Tailoring and fundamental characterisation of magnetic molecules: Magnetic molecules for implementation into devices will be synthesised and fundamentally investigated by theoretical methods and experimentally by scanning probe techniques as well as optical and magnetic measurements. Already at this stage basic compatibility aspects concerning device processing are taken into account. (2) Fabrication, characterisation and optimisation of molecular thin films and interfaces: New deposition techniques to create suitable molecular films need to be developed for a variety of molecules. The structure, morphology and molecular orientation of the layers will be characterised and optimised. The experimental results will be complemented by theoretical predictions for properties of molecules on surfaces. For device integration, the molecular layers need to obey certain boundary conditions, such as long-term stability and process compatibility. Continuous feedback between the basic characterisation and the technology projects allows targeted and efficient synthesis of appropriate molecules and molecular films for device application. (3) Device demonstration and on-chip integration: Rolled-up nanotechnology will be used to create vertically stacked spin valves. We aim, for the first time, at contacting the molecular layers by doped semiconductor electrodes. We will also realise a laterally stacked three-terminal device for large-scale integration purposes.