A phenomenological framework for heavy electron materials

Yi-feng Yang

Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China


    In this talk, I will summarize the recent development of a phenomenological framework for heavy electron materials that includes: 1. A dominant energy/temperature scale T* given by the inter-site RKKY coupling between neighboring f-moments; 2. A novel scaling law behind various anomalous behaviors; 3. A new phase diagram to replace the seminal phase diagram proposed by Doniach. I will show that the phenomenological framework provides a consistent and quantitative explanation for many physical properties of CeRhIn5 and other heavy electron materials and connects the onset of the high temperature heavy electron state and the emergence of the low temperature ordered states.

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