Hydrogenation driven structural transformation and adjustable electronic properties of epitaxial La0.3Sr0.7MnO3- δ films

Jin，Dun1; Hu，Sixia2; Huang，Haoliang3; Qiu，Peiqi1; Lu，Yalin3; Zeng，Xierong1; Zhou，Haiping4; Li，Xiaohua1; Huang，Chuanwei1

2021-03-01

10.1063/5.0035732

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

Manganites (R1-xAxMnO3, R = rare-earth cation and A = alkali or alkaline earth cation) host an immense number of phases and electronic properties, which can be mainly manipulated through conventional structural control such as metallic cations, oxygen concentration, or misfit strain. However, their practical applications are heavily hindered due to the requirement of rigid synthesis conditions and prolonged treatment time. Herein, a subtle hydrogenation of canonical epitaxial La0.3Sr0.7MnO3 films gives rise to a series of structural transformations ranging from the perovskite to the intermediate state and to the brownmillerite one, accompanied by tunable electronic performances from the antiferromagnetic insulating phase to the weak magnetic insulating one. Moreover, the hydrogenated La0.3Sr0.7MnO3-δ films show an ultra-high magnetic temperature (>400 K). The efficient modulations of the crystalline structure and functionalities of manganite oxides using the facile hydrogenation process enable practical applications of high-temperature magnetic insulators in spintronic devices.

SCI ; EI

英语

NI期刊

其他

Guangdong Basic and Applied Basic Research Foundation[2019A1515011529] ; Anhui Initiative in Quantum Information Technologies[AHY100000] ; Fundamental Research Funds for Central Universities[ZYGX2019J031]

Physics

Physics, Applied

WOS:000630474500001

AMER INST PHYSICS

20211010047319

Electronic properties ; High temperature applications ; Hydrogenation ; Lanthanum compounds ; Magnetism ; Manganites ; Perovskite ; Positive ions ; Rare earths ; Strontium compounds ; Structural dynamics

Structural Design:408 ; Minerals:482.2 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Chemical Reactions:802.2 ; Inorganic Compounds:804.2

PHYSICS

2-s2.0-85102051868

Scopus

1.Shenzhen Key Laboratory of Special Functional Materials,College of Materials Science and Engineering,Shenzhen University,Shenzhen,518060,China
2.Sustech Core Research Facilities,Southern University of Science and Technology of China,Shenzhen, Guangdong,518055,China
3.Anhui Laboratory of Advanced Photon Science and Technology,Hefei National Laboratory for Physical Sciences at the Microscale,University of Science and Technology of China,Hefei, Anhui,230026,China
4.State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu,611731,China

Jin，Dun,Hu，Sixia,Huang，Haoliang,et al. Hydrogenation driven structural transformation and adjustable electronic properties of epitaxial La0.3Sr0.7MnO3- δ films[J]. APPLIED PHYSICS LETTERS,2021,118(9).

Jin，Dun.,Hu，Sixia.,Huang，Haoliang.,Qiu，Peiqi.,Lu，Yalin.,...&Huang，Chuanwei.(2021).Hydrogenation driven structural transformation and adjustable electronic properties of epitaxial La0.3Sr0.7MnO3- δ films.APPLIED PHYSICS LETTERS,118(9).

Jin，Dun,et al."Hydrogenation driven structural transformation and adjustable electronic properties of epitaxial La0.3Sr0.7MnO3- δ films".APPLIED PHYSICS LETTERS 118.9(2021).