Electronic Structure and Phase Transitions (G04)

在金属间化合物中，实现的材料性质由实际的原子排列决定。我们将主要通过将中子衍射实验与宏观参数的测量相关联来研究无序效应，并推导出相关的微观模型。这将特别在基于Ni2Mn的Heusler系统中完成，该系统显示出功能潜力，包括例如大的铁磁形状记忆和磁热效应以及铁磁半金属性质。

In intermetallic compounds, the realized materials properties are governed by the actual atomic arrangements. We will study the effect of disorder by correlating mainly neutron diffraction experiments with measurements of macroscopic parameters and derive pertinent microscopic models. This will be done specifically in Ni2Mn-based Heusler systems, which display functional potentials including, e.g., large ferromagnetic shape-memory and magnetocaloric effects as well as ferromagnetic half-metallicity.