Temperature Dependence of the Optical Response of Perovskite-type SrIrO3 Thin Film
- Authors
- Moon, S. J.
- Issue Date
- Apr-2014
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- SrIrO3; Spin-orbit coupling; J(eff)=1/2 state; Optical response
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.64, no.8, pp.1174 - 1178
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 64
- Number
- 8
- Start Page
- 1174
- End Page
- 1178
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143601
- DOI
- 10.3938/jkps.64.1174
- ISSN
- 0374-4884
- Abstract
- We report on the temperature-dependent optical absorption spectra of an orthorhombic SrIrO3 thin film in the energy region between 0.08 and 6 eV. The optical absorption spectra show the characteristic spectral features associated with spin-orbit coupling-induced effective total angular momentum J(eff) states. A Drude-like response from the electrons in the J(eff) = 1/2 bands is observed in the energy region below about 0.5 eV followed by an interband transition from the J(eff) = 3/2 to the J(eff) = 1/2 bands at 0.7 eV. The electron excitations between the J(eff) bands exhibit a strong temperature dependence that is different from the behavior of conventional metals. The spectral weight analysis of the absorption data suggests an anomalous low-frequency electrodynamic behavior for of SrIrO3.
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