Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	Synthesis and electronic properties of Ruddlesden-Popper strontium iridate epitaxial thin films stabilized by control of growth kinetics
	Shafer, P.; Chakhalian, J.; Arenholz, E.; Haskel, D.; Choi, Y.; Kareev, M.; Middey, S.; Pal, B.; Cao, Yanwei; Liu, Xiaoran
刊名	PHYSICAL REVIEW MATERIALS
	2017
卷号	1 期号:7
关键词	Sriro3
英文摘要	We 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.
学科主题	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17484]
专题	2017专题
推荐引用方式 GB/T 7714	Shafer, P.,Chakhalian, J.,Arenholz, E.,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	Shafer, P..,Chakhalian, J..,Arenholz, E..,Haskel, D..,Choi, Y..,...&Liu, Xiaoran.(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	Shafer, P.,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).