材料科学
应变工程
相变
凝聚态物理
外延
范德瓦尔斯力
调制(音乐)
拉伤
晶格常数
化学物理
纳米技术
衍射
光学
化学
图层(电子)
有机化学
哲学
内科学
物理
美学
医学
分子
作者
Lulu Wang,Zewei Shao,Qiang Li,Jianjun Li,Chan Yang,Ping Jin,Xun Cao
标识
DOI:10.1002/admi.202200864
摘要
Abstract Unique metal–insulator transition behaviors of strongly correlated electronic materials, vanadium dioxide (VO 2 ), and their wide potential applications have gained much attention for investigation. In this research, high‐quality epitaxial films of VO 2 (020) are directly grown on fluorophlogopite (001) substrates, and the relationship between phase‐transition temperature and external strains is revealed. After verifying the like‐freestanding property and low intrinsic resistance changing of VO 2 /fluorophlogopite, variable phase‐transition temperatures under different external strains with a tuning rate of 5.37 K per 0.1% strain are obtained. Based on experimental results and theoretical calculation, it is speculated that lattice constant and bandgap between d // and π * are strongly affected by the external strains, which allow for more effective dynamic modulation of phase‐transition process. This research provides a comprehensive understanding of strain engineering on phase‐transition properties and also broadens the possibility of potential applications of certain optoelectronic devices for strain modulation.
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