Thickness-dependent anisotropy of metal-insulator transition in (110)-VO2/TiO2 epitaxial thin films
Hu, K; Yang, YJ; Hong, B; Zhao, JT; Luo, ZL; Li, XG; Zhang, XM; Gu, YL; Gao, XY; Gao, C
2017
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
卷号699页码:575-580
文章类型期刊论文
摘要This work reports the thickness dependence of the anisotropic electronic transport in strained VO2/TiO2 (110) epitaxial thin films with the aim of exploring the strain-modulated metal-insulator transition (MIT). The MIT temperature varies from around 349 K-341 K while increasing the film thickness, which is higher than the bulk MIT temperature of 340 K. More importantly, the electrical transport property is anisotropic along the in-plane [100] and [1-10] directions and the anisotropy is further improved in thicker films. Using synchrotron radiation X-ray reciprocal space mapping (RSM) and atomic force microscopy, the thickness-dependent strain induces different stripe phase states in the VO2 thin films and thus the emergence of the distinctive anisotropic electronic transport in the vicinity of the MIT. These results provide a better understanding of the crystalline-facet-dependent strain modulation of the MIT and offer a guide for designing metamaterials based on the anisotropic features of VO2 thin films. (C) 2016 Elsevier B.V. All rights reserved.
关键词Anisotropic Metal-insulator Transition Anisotropic Electronic Transport Epitaxial Strain Vanadium Dioxide Thin Film Stripe Domain Structure
DOI10.1016/j.jallcom.2016.12.412
收录类别SCI
语种英语
WOS记录号WOS:000393727500081
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27486
专题中科院上海应用物理研究所2011-2018年
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Hu, K,Yang, YJ,Hong, B,et al. Thickness-dependent anisotropy of metal-insulator transition in (110)-VO2/TiO2 epitaxial thin films[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,699:575-580.
APA Hu, K.,Yang, YJ.,Hong, B.,Zhao, JT.,Luo, ZL.,...&Gao, C.(2017).Thickness-dependent anisotropy of metal-insulator transition in (110)-VO2/TiO2 epitaxial thin films.JOURNAL OF ALLOYS AND COMPOUNDS,699,575-580.
MLA Hu, K,et al."Thickness-dependent anisotropy of metal-insulator transition in (110)-VO2/TiO2 epitaxial thin films".JOURNAL OF ALLOYS AND COMPOUNDS 699(2017):575-580.
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