Calorimetric Study of the Magnetic Phase Transitions in EuNi5P3

9318199菲利普斯描述：这个项目是对EuNi3P3有序相的完整磁相图的量热测定。对这种材料的磁化测量表明，这种材料存在一个非常复杂和不寻常的相图，在4.3和5.5K有一系列的阶跃，但相图中大部分感兴趣的区域尚未确定。拟议的研究将定义与这些步骤相关的相图，从感兴趣的最低温度到Tn=7.5K，以及整个感兴趣的磁场范围。这些结果将允许与由中子衍射确定的磁结构和台阶理论进行详细的比较，从而有助于从根本上理解磁相互作用、磁结构和磁性材料的性质之间的关系。范围：印度班加罗尔尼赫鲁高级科学研究中心的P.Radhakrishna博士将在该项目中发挥关键作用，将他在中子衍射和磁结构方面的专业知识应用于实验的设计和解释。***

9318199 Phillips Description: This project is a calorimetric determination of the complete magnetic phase diagram for the ordered phases of EuNi3P3. The existence of a very complex and unusual phase diagram for this material was made clear by measurements of the magnetization that showed a series of steps at 4.3 and 5.5K, but which left much of the interesting region of the phase diagram undetermined. The proposed research will define the phase diagram associated with these steps from the lowest temperatures of interest to TN =7.5K, and through the entire range of magnetic fields of interest. The results will permit a detailed comparison with magnetic structures, which are being determined by neutron diffraction, and with the theory of the steps; and thus contribute to a fundamental understanding of the relations among magnetic interactions, magnetic structures, and the properties of magnetic materials. Scope: Dr. P. Radhakrishna of Jawaharlal Nehru Centre for Advanced Scientific Studies, Bangalore, India, will play a key role in the project by bringing his expertise in neutron diffraction and magnetic structures to bear on the design and interpretation of the experiments. ***