气候变化领域集成服务门户(CCPortal): Extreme tensile strain states in La0.7Ca0.3MnO3 membranes

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DOI	10.1126/science.aax9753
	Extreme tensile strain states in La0.7Ca0.3MnO3 membranes
	Hong S.S.; Gu M.; Verma M.; Harbola V.; Wang B.Y.; Lu D.; Vailionis A.; Hikita Y.; Pentcheva R.; Rondinelli J.M.; Hwang H.Y.
发表日期	2020
ISSN	0036-8075
卷号	368 期号:6486
英文摘要	A defining feature of emergent phenomena in complex oxides is the competition and cooperation between ground states. In manganites, the balance between metallic and insulating phases can be tuned by the lattice; extending the range of lattice control would enhance the ability to access other phases. We stabilized uniform extreme tensile strain in nanoscale La0.7Ca0.3MnO3 membranes, exceeding 8% uniaxially and 5% biaxially. Uniaxial and biaxial strain suppresses the ferromagnetic metal at distinctly different strain values, inducing an insulator that can be extinguished by a magnetic field. Electronic structure calculations indicate that the insulator consists of charge-ordered Mn4+ and Mn3+ with staggered strain-enhanced Jahn-Teller distortions within the plane. This highly tunable strained membrane approach provides a broad opportunity to design and manipulate correlated electron states. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	calcium oxide ferromagnetic material lanthanum oxide manganese oxide electron inorganic compound magnetic field membrane Article calculation controlled study electron magnetic field physical parameters priority journal tensile strain
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133589
推荐引用方式 GB/T 7714	Hong S.S.,Gu M.,Verma M.,et al. Extreme tensile strain states in La0.7Ca0.3MnO3 membranes[J]. Science,2020,368(6486).
APA	Hong S.S..,Gu M..,Verma M..,Harbola V..,Wang B.Y..,...&Hwang H.Y..(2020).Extreme tensile strain states in La0.7Ca0.3MnO3 membranes.,368(6486).
MLA	Hong S.S.,et al."Extreme tensile strain states in La0.7Ca0.3MnO3 membranes".368.6486(2020).