Elucidation of electronic structures of magnetic uranium compounds

2016 Fiscal Year Final Research Report

• Project/Area Number: 26400374
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: Fujimori Shin-ichi 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 物質科学研究センター, 研究主幹 (70343936)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 強相関電子系 / アクチノイド化合物 / 角度分解光電子分光

Outline of Final Research Achievements

The electronic structures of UX3 (X=Al, Ga, and In) compounds, which exhibit various magnetic properties, have been studied by the photoelectron spectroscopy with synchrotron radiation to understand the relationship between the magnetic property and the electronic structure in the strongly correlated f- electron system. We have found that 5f electrons have an essentially itinerant character in UAl3 and UGa3 while there is a contribution from electron correlation effect in UIn3. Although their Fermi surfaces have similar structures, their fine structures have distinct differences. They are essential information for the understanding in the itinerant f-electron magnets, and contribute their essential understanding.

Free Research Field

物性物理学