Observation of superconductivity in structure-selected Ti2O3 thin films

doi:10.1038/s41427-018-0050-5

	Observation of superconductivity in structure-selected Ti2O3 thin films
	Li, Yangyang 1,2; Weng, Yakui 3; Zhang, Junjie 3; Ding, Junfeng 1,4; Zhu, Yihan 5; Wang, Qingxiao 1,6; Yang, Yang 7; Cheng, Yingchun 8,9; Zhang, Qiang 1; Li, Peng 1
刊名	NPG ASIA MATERIALS
	2018-06-06
卷号	10 页码:11
ISSN号	1884-4049
DOI	10.1038/s41427-018-0050-5
通讯作者	Dong, Shuai(sdong@seu.edu.cn) ; Wu, Tom(tom.wu@unsw.edu.au)
英文摘要	The search for new superconductors capable of carrying loss-free current has been a research theme in condensed matter physics for the past decade. Among superconducting compounds, titanates have not been pursued as much as Cu2+ (3d(9)) (cuprate) and Fe2+ (3d(6)) (pnictide) compounds. Particularly, Ti3+-based compounds or electron systems with a special 3d(1) filling are thought to be promising candidates as high-TC superconductors, but there has been no report on such pure Ti3+-based superconducting titanates. With the advent of thin-film growth technology, stabilizing new structural phases in single-crystalline thin films is a promising strategy to realize physical properties that are absent in the bulk counterparts. Herein, we report the discovery of unexpected superconductivity in orthorhombic-structured thin films of Ti2O3, a 3d(1) electron system, which is in strong contrast to the conventional semiconducting corundum-structured Ti2O3. This is the first report of superconductivity in a titanate with a pure 3d(1) electron configuration. Superconductivity at 8 K was observed in the orthorhombic Ti2O3 films. Leveraging the strong structure-property correlation in transition-metal oxides, our discovery introduces a previously unrecognized route for inducing emergent superconductivity in a newly stabilized polymorph phase in epitaxial thin films.
资助项目	King Abdullah University of Science and Technology (KAUST) ; National Natural Science Foundation of China[11674055] ; National Natural Science Foundation of China[11474146] ; National Natural Science Foundation of China[U1532142] ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program[2015DFH10200]
WOS关键词	TUNGSTEN BRONZES ; TEMPERATURE ; TRANSITION ; SRTIO3 ; POLYMORPH ; SYMMETRY ; BEHAVIOR ; SYSTEM ; STRAIN ; GROWTH
WOS研究方向	Materials Science
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000442468100001
资助机构	King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; King Abdullah University of Science and Technology (KAUST) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program ; Hong Kong, Macao and Taiwan Science & Technology Cooperation Program
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/37971]
专题	中国科学院合肥物质科学研究院
通讯作者	Dong, Shuai; Wu, Tom
作者单位	1.KAUST, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia 2.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore 3.Southeast Univ, Sch Phys, Nanjing 211189, Jiangsu, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China 5.KAUST, Adv Membranes & Porous Mat Ctr, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia 6.Univ Texas Dallas, Dept Mat Sci & Engn, 800 W Campbell Rd,RL 10, Richardson, TX 75080 USA 7.KAUST, Adv Nanofabricat & Imaging Core Lab, Thuwal 239556900, Saudi Arabia 8.Nanjing Tech Univ, Key Lab Flexible Elect KLOFE, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China 9.Nanjing Tech Univ, IAM, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China 10.Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore
推荐引用方式 GB/T 7714	Li, Yangyang,Weng, Yakui,Zhang, Junjie,et al. Observation of superconductivity in structure-selected Ti2O3 thin films[J]. NPG ASIA MATERIALS,2018,10:11.
APA	Li, Yangyang.,Weng, Yakui.,Zhang, Junjie.,Ding, Junfeng.,Zhu, Yihan.,...&Wu, Tom.(2018).Observation of superconductivity in structure-selected Ti2O3 thin films.NPG ASIA MATERIALS,10,11.
MLA	Li, Yangyang,et al."Observation of superconductivity in structure-selected Ti2O3 thin films".NPG ASIA MATERIALS 10(2018):11.