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Nano Titanium Monoxide Crystals and Unusual Superconductivity at 11 K

文献类型：期刊论文

作者Xu, Jijian1; Wang, Dong; Yao, Heliang; Bu, Kejun; Pan, Jie; He, Jianqiao; Xu, Fangfang; Hong, Zhanglian1; Chen, Xiaobo2; Huang, Fuqiang1,3
刊名ADVANCED MATERIALS
出版日期2018
卷号30期号:10
关键词controllable reduction core-shell structure interface superconductivity nano titanium monoxide
ISSN号0935-9648
DOI10.1002/adma.201706240
英文摘要Nano TiO2 is investigated intensely due to extraordinary photoelectric performances in photocatalysis, new-type solar cells, etc., but only very few synthesis and physical properties have been reported on nanostructured TiO or other low valent titanium-containing oxides. Here, a core-shell nanoparticle made of TiO core covered with a approximate to 5 nm shell of amorphous TiO1+x is newly constructed via a controllable reduction method to synthesize nano TiO core and subsequent soft oxidation to form the shell (TiO1+x). The physical properties measurements of electrical transport and magnetism indicate these TiO@TiO1+x nanocrystals are a type-II superconductor of a recorded T-c(onset) = 11 K in the binary Ti-O system. This unusual superconductivity could be attributed to the interfacial effect due to the nearly linear gradient of O/Ti ratio across the outer amorphous layer. This novel synthetic method and enhanced superconductivity could open up possibilities in interface superconductivity of nanostructured composites with well-controlled interfaces.
学科主题Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号WOS:000426720400025
出版者WILEY-V C H VERLAG GMBH
资助机构J.J.X., D.W., and H.L.Y. contributed equally to this work. This research project was supported by National Key Research and Development Program (Grant No. 2016YFB0901600), NSF of China (Grant No. 61376056), Science and Technology Commission of Shanghai (Grant No. 16JC1401700), the Key Research Program of Frontier Sciences of the CAS (Grant No. QYZDJ-SSW-JSC013), Key Research Program of Chinese Academy of Sciences (Grant No. KGZD-EW-T06). ; J.J.X., D.W., and H.L.Y. contributed equally to this work. This research project was supported by National Key Research and Development Program (Grant No. 2016YFB0901600), NSF of China (Grant No. 61376056), Science and Technology Commission of Shanghai (Grant No. 16JC1401700), the Key Research Program of Frontier Sciences of the CAS (Grant No. QYZDJ-SSW-JSC013), Key Research Program of Chinese Academy of Sciences (Grant No. KGZD-EW-T06).
源URL[http://ir.sic.ac.cn/handle/331005/25100]  
专题中国科学院上海硅酸盐研究所
作者单位1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
2.Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
3.Univ Missouri, Kansas City, MO 64110 USA
4.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Jijian,Wang, Dong,Yao, Heliang,et al. Nano Titanium Monoxide Crystals and Unusual Superconductivity at 11 K[J]. ADVANCED MATERIALS,2018,30(10).
APA Xu, Jijian.,Wang, Dong.,Yao, Heliang.,Bu, Kejun.,Pan, Jie.,...&Huang, Fuqiang.(2018).Nano Titanium Monoxide Crystals and Unusual Superconductivity at 11 K.ADVANCED MATERIALS,30(10).
MLA Xu, Jijian,et al."Nano Titanium Monoxide Crystals and Unusual Superconductivity at 11 K".ADVANCED MATERIALS 30.10(2018).

入库方式： OAI收割

来源：上海硅酸盐研究所

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