FOR 1464: ASPIMATT: Advanced Spintronic Materials and Transport Phenomena

日德研究所的目标是为未来的自旋电子学奠定基础，并有可能补充和取代传统的CMOS。具体的方法在于在室温下应用的新的自旋电子材料的开发和表征，以及对新的自旋输运现象，特别是横向自旋电流现象的研究。该研究课题位于纳米电子学领域，特别是在纳米自旋电子学和相关材料和结构的研究领域。自旋电子学领域的许多问题仍然缺乏很好的解决方案，尽管来自市场方面的压力非常大。半金属Heusler化合物的概念提供了一个新的解决方案的前景。Heusler化合物可以被设计和制造成具有高自旋极化和高居里温度，以及取决于应用的高自旋注入效率、非常低或高的阻尼、可调谐的磁矩（可以实现低和高磁矩）和可调谐的各向异性。因此，存在非常高的潜力，即可以克服当前3d金属系统中存在的许多与材料相关的问题。一个巨大的挑战仍然是处理界面的化学（原子扩散和粗糙度），电子（例如，肖特基势垒设计）和自旋特性（自旋注入和自旋泵浦）。此外，使用Heusler化合物家族中的新型材料存在新现象和应用的潜力，在此将新型半导体Heusler化合物命名为用作非铁磁自旋导体。为了实现这一雄心勃勃的目标，所需的全面经验和专业知识并不局限于一个地方，甚至不是在一个国家，因此，来自两所德国大学的团队，约翰内斯古滕贝格大学美因茨和工业大学凯撒斯特恩，联合收割机结合他们的专业知识与日本仙台东北大学的团队。我们认为我们在理解和制造Heusler化合物方面拥有独特的专业知识，作为全球该领域的唯一联盟，它涵盖了从基于计算机的设计到真实的设备应用的全部范围。

The aim of the Japanese-German Research Unit is to develop the foundations for a future spintronics with the potential to complement and succeed conventional CMOS. The specific approach lies on the development and characterisation of new spintronic materials for applications at room temperature and on the study of new spin transport phenomena, in particular lateral spin current phenomena. The research subject lies in the field of nanoelectronics, specifically in the research area Nanospintronics and Related Materials and Structures. Many problems in the field of spintronics still lack good solutions, although there is very high pressure from the market side. The concept of half-metallic Heusler compounds provides a perspective for novel solutions. Heusler compounds can be designed and made with high spin polarisation and high Curie temperature, as well as, depending on the application, high spin injection efficiency, very low or high damping, tunable magnetic moment (low and high magnetic moment can be realised) and tunable anisotropy. Thus, there is very high potential, that many material related problems, present in current-day 3d metal systems, can be overcome. A big challenge is still the handling of interfaces with respect to their chemical (atomic diffusion and roughness), electronic (e.g., Schottky barrier design) and spin properties (spin injection and spin pumping). In addition, potential for new phenomena and applications exists using novel materials in the Heusler compound family, to name here novel semi-conducting Heusler compounds to be used as non-ferromagnetic spin conductors. To achieve this highly ambitious aim, the needed thorough experience and expertise is not localised in a single place and not even in a single country, and thus groups from two German universities, the Johannes Gutenberg University Mainz and the Technische Universität Kaiserslautern, combine their expertise with groups at the Tohoku University, Sendai, Japan. We feel we have a working unique expertise in understanding and making Heusler compounds as the only consortium in this field worldwide, which covers the full range from the computer based design to applications in real devices.