Fermi surface and quasiparticle excitations of Sr2RhO4

被引：53

作者：

Baumberger, F. ^{[1
]}

Ingle, N. J. C.

Meevasana, W.

Shen, K. M.

Lu, D. H.

Perry, R. S.

Mackenzie, A. P.

Hussain, Z.

Singh, D. J.

Shen, Z. -X.

机构：

[1] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[3] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA

[4] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[5] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA

[6] Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.96.246402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The electronic structure of the layered 4d transition metal oxide Sr2RhO4 is investigated by angle resolved photoemission. We find well-defined quasiparticle excitations with a highly anisotropic dispersion, suggesting a quasi-two-dimensional Fermi-liquid-like ground state. Markedly different from the isostructural Sr2RuO4, only two bands with dominant Rh 4d(xz,zy) character contribute to the Fermi surface. A quantitative analysis of the photoemission quasiparticle band structure is in excellent agreement with bulk data. In contrast, it is found that state-of-the-art density functional calculations in the local density approximation differ significantly from the experimental findings.

引用

页数：4

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