Novel J(eff)=1/2 Mott state induced by relativistic spin-orbit coupling in Sr2IrO4
SCIE
SCOPUS
- Title
- Novel J(eff)=1/2 Mott state induced by relativistic spin-orbit coupling in Sr2IrO4
- Authors
- Kim, BJ; Jin, H; Moon, SJ; Kim, JY; Park, BG; Leem, CS; Yu, J; Noh, TW; Kim, C; Oh, SJ; Park, JH; Durairaj, V; Cao, G; Rotenberg, E
- Date Issued
- 2008-08-15
- Publisher
- AMER PHYSICAL SOC
- Abstract
- We investigated the electronic structure of 5d transition-metal oxide Sr2IrO4 using angle-resolved photoemission, optical conductivity, x-ray absorption measurements, and first-principles band calculations. The system was found to be well described by novel effective total angular momentum J(eff) states, in which the relativistic spin-orbit coupling is fully taken into account under a large crystal field. Despite delocalized Ir 5d states, the J(eff) states form such narrow bands that even a small correlation energy leads to the J(eff) = 1/2 Mott ground state with unique electronic and magnetic behaviors, suggesting a new class of J(eff) quantum spin driven correlated-electron phenomena.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12456
- DOI
- 10.1103/PhysRevLett.101.076402
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 101, no. 7, page. 76402 - 76402, 2008-08-15
- Files in This Item:
-
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.