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Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics
Liu, Xiaoran; Cao, Yanwei; Pal, B.; Middey, S.; Kareev, M.; Choi, Y.; Shafer, P.; Haskel, D.; Arenholz, E.; Chakhalian, J.
2017
Source PublicationPHYSICAL REVIEW MATERIALS
Volume1Issue:7
AbstractWe report on the selective fabrication of high-quality Sr2IrO4 and SrIrO3 epitaxial thin films from a single polycrystalline Sr2IrO4 target by pulsed laser deposition. Using a combination of x-ray diffraction and photoemission spectroscopy characterizations, we discover that within a relatively narrow range of substrate temperature, the oxygen partial pressure plays a critical role in the cation stoichiometric ratio of the films, and triggers the stabilization of different Ruddlesden-Popper (RP) phases. Resonant x-ray absorption spectroscopy measurements taken at the Ir L edge and the O K edge demonstrate the presence of strong spin-orbit coupling, and reveal the electronic and orbital structures of both compounds. These results suggest that in addition to the conventional thermodynamics consideration, higher members of the Srn+1IrnO3n+1 series can possibly be achieved by kinetic control away from the thermodynamic limit. These findings offer an approach to the synthesis of ultrathin films of the RP series of iridates and can be extended to other complex oxides with layered structure.
KeywordSriro3
Subject AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17484
Collection2017专题
Recommended Citation
GB/T 7714
Liu, Xiaoran,Cao, Yanwei,Pal, B.,et al. Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics[J]. PHYSICAL REVIEW MATERIALS,2017,1(7).
APA Liu, Xiaoran.,Cao, Yanwei.,Pal, B..,Middey, S..,Kareev, M..,...&Chakhalian, J..(2017).Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics.PHYSICAL REVIEW MATERIALS,1(7).
MLA Liu, Xiaoran,et al."Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics".PHYSICAL REVIEW MATERIALS 1.7(2017).
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