Coulomb-enhanced spin-orbit splitting:: The missing piece in the Sr2RhO4 puzzle

被引：103
作者：
Liu, Guo-Qiang [1 ]
Antonov, V. N. [1 ]
Jepsen, O. [1 ]
Andersen., O. K. [1 ]
机构：
[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 02期
关键词：
D O I：
10.1103/PhysRevLett.101.026408
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The outstanding discrepancy between the measured and calculated (local-density approximation) Fermi surfaces in the well-characterized, paramagnetic Fermi liquid Sr(2)RhO(4) is resolved by including the spin-orbit coupling and Coulomb repulsion. This results in an effective spin-orbit coupling constant enhanced 2.15 times over the bare value. A simple formalism allows discussion of other systems. For Sr(2)RhO(4), the experimental specific-heat and mass enhancements are found to be 2.2.
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