Fermi surface and quasiparticle excitations of Sr2RhO4 |
| |
Authors: | Baumberger F 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 |
| |
Institution: | Department of Applied Physics, and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305, USA. |
| |
Abstract: | 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 4dxz,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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|