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Optical conductivity, Fermi surface, and spin-orbit coupling effects in Sr2RhO4

文献类型：期刊论文

作者Zhang, Guoren4; Pavarini, Eva1,2,3
刊名PHYSICAL REVIEW B
出版日期2019-03-04
卷号99期号:12页码:9
ISSN号2469-9950
DOI10.1103/PhysRevB.99.125102
通讯作者Zhang, Guoren()
英文摘要By using the local-density approximation + dynamical mean-field theory approach, we study the low-energy electronic properties of Sr2RhO4 in a realistic setting, and compare to Sr2RuO4. We investigate the interplay of spin-orbit coupling, crystal field, and Coulomb interaction, including the tetragonal terms of the Coulomb tensor. We find that (i) differently than in Sr2RuO4, the zero-frequency effective crystal-field "enhancement" due to Coulomb repulsion, Delta epsilon(CF)(omega = 0), is small and, depending on the parameters, even negative. (ii) In addition, the effects of (realistic) anisotropic Coulomb terms are weak. (iii) Instead, the effective zero-frequency enhancement of the spin-orbit interaction doubles the value of the corresponding local-density approximation couplings. This explains the experimental Fermi surface and supports a previous proposal based on static mean-field calculations. We find that the sign of the Coulomb-induced spin-orbit anisotropy is influenced by the octahedral rotation. Based on these conclusions, we examine recent optical conductivity experiments. (iv) We show that the spin-orbit interaction is key for understanding them; differently than in Sr2RuO4, the t(2g) intraorbital contributions are small; thus, the single-band picture does not apply.
资助项目National Natural Science Foundation of China[11774350]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000460722900002
出版者AMER PHYSICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/42236]  
专题合肥物质科学研究院_中科院固体物理研究所
通讯作者Zhang, Guoren
作者单位1.Rhein Westfal TH Aachen, JARA High Performance Comp, D-52062 Aachen, Germany
2.Rhein Westfal TH Aachen, JARA FIT, D-52062 Aachen, Germany
3.Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany
4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Guoren,Pavarini, Eva. Optical conductivity, Fermi surface, and spin-orbit coupling effects in Sr2RhO4[J]. PHYSICAL REVIEW B,2019,99(12):9.
APA Zhang, Guoren,&Pavarini, Eva.(2019).Optical conductivity, Fermi surface, and spin-orbit coupling effects in Sr2RhO4.PHYSICAL REVIEW B,99(12),9.
MLA Zhang, Guoren,et al."Optical conductivity, Fermi surface, and spin-orbit coupling effects in Sr2RhO4".PHYSICAL REVIEW B 99.12(2019):9.

入库方式： OAI收割

来源：合肥物质科学研究院

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