首页> 外文会议>Symposium Proceedings vol.893; Symposium on Actinides 2005-Basic Science, Applications and Technology; 20051128-1201; Boston,MA(US) >Pressure Effect on the Superconductivity of AnTGa_5 Systems and Americium Metal (An=Np, Pu, Am - T=Co, Rh, Ir)
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Pressure Effect on the Superconductivity of AnTGa_5 Systems and Americium Metal (An=Np, Pu, Am - T=Co, Rh, Ir)

机译:压力对AnTGa_5体系和A金属(An = Np,Pu,Am-T = Co,Rh,Ir)的超导性的影响

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We report on pressure studies of the superconducting and magnetic properties of AnTGa_5 (An=Np,Pu,Am and T=Co, Rh, Ir) and Americium metal down to 0.4 K. The fact that the PuTGa_5 systems present lots of similarities with the CeTIn_5 (T=Co, Rh, Ir) must not hide some fascinating features of these materials: they display superconducting characteristics one order of magnitude higher than all 5f superconducting compounds. Finally we present a superconducting pressure diagram of Americium metal under pressure up to 27 GPa and down to 0.4 K. The complex superconducting diagram T_c(p) related to several phases transition led us to examine the localization-delocalization aspect of the 5f electrons in this metal through the Mott transition.
机译:我们报告了对AnTGa_5(An = Np,Pu,Am和T = Co,Rh,Ir)和A金属(低至0.4 K)的超导和磁性能的压力研究。PuTGa_5系统与铁氧体的许多相似之处CeTIn_5(T = Co,Rh,Ir)不能掩盖这些材料的一些令人着迷的特征:它们显示的超导特性比所有5f超导化合物高一个数量级。最后,我们给出了meric金属在高达27 GPa和低至0.4 K的压力下的超导压力图。与几个相变有关的复杂超导图T_c(p)促使我们在此研究5f电子的局域-离域方面。金属通过莫特过渡。

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