Exchange energy dominated by large orbital spin-currents in δ-Pu

被引：19

作者：

Cricchio, Francesco ^{[1
]}

Bultmark, Fredrik ^{[1
]}

Nordstrom, Lars ^{[1
]}

机构：

[1] Uppsala Univ, Dept Phys & Mat Sci, SE-75121 Uppsala, Sweden

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 10期

基金：

瑞典研究理事会;

关键词：

D O I：

10.1103/PhysRevB.78.100404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure of the anomalous delta phase of Pu is analyzed by a general and exact reformulation of the exchange energy of the f shell. It is found that the dominating contribution to the exchange energy is a polarization of orbital spin-currents that preserves the time-reversal symmetry; hence a nonmagnetic solution in accordance with experiments. The analysis brings a unifying picture of the role of exchange in the 5f shell with its relatively strong spin-orbit coupling. The results are in good accordance with recent measurements of the branching ratio for the d to f transition in the actinides.

引用

页数：4

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