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理解和实验演示。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两个跨学科的研究领域，有机电子学和分子磁学。我们的努力应该是为了促进在其他方面分离的社区之间进行富有成效的交流。这将有助于理解各种基本现象和主要的物理效应，并解决长期存在的科学问题和分歧。我们的活动重点是：（1）磁性分子的定制和基本表征：将通过理论方法和实验方法，通过扫描探针技术以及光学和磁性测量，合成和基本研究用于实现器件的磁性分子。在这个阶段，已经考虑到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造、表征和优化：需要为各种分子开发新的沉积技术来创建合适的分子膜。层的结构、形态和分子取向将被表征和优化。实验结果将由表面分子性质的理论预测来补充。对于器件集成，分子层需要遵守某些边界条件，例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针对性地和有效地合成用于器件应用的适当分子和分子膜。(3)器件演示和片上集成：卷起的纳米技术将用于创建垂直堆叠的自旋阀。我们的目标是，第一次，在接触的分子层掺杂的半导体电极。我们还将实现一个横向堆叠的三端设备的大规模集成的目的。

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.