Abstract Vanadium dioxide (VO2) is a promising thermally induced phase transition material because of the abrupt changes in electrical and optical properties. However, the high phase transition temperature of VO2 and its unspecified modulation relationship need to be resolved urgently. Herein, we proposed a simple and precise regulation criterion for VO2 materials based on size-dependent lattice distortion rate and Born theory. The results indicated that the application of a tensile stress changed the elastic properties of the VO2, which promoted VO2 phase transition, and regulated the phase transition temperature. Moreover, the specific modulation relationship between the stress and phase transition temperature of VO2 was confirmed experimentally. These results show that our criterion provides theoretical guidance to regulate VO2 thermally induced phase transition materials.

中文翻译：

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基于尺寸依赖的晶格畸变率和VO2纳米材料固有理论的相变调节准则

摘要 二氧化钒 (VO2) 是一种很有前途的热致相变材料，因为它的电学和光学性质会发生突变。然而，VO2 的高相变温度及其未指明的调制关系亟待解决。在此，我们基于尺寸相关的晶格畸变率和波恩理论提出了一种简单而精确的 VO2 材料调节标准。结果表明，施加拉应力改变了 VO2 的弹性性能，促进了 VO2 相变，并调节了相变温度。此外，实验证实了 VO2 应力与相变温度之间的特定调制关系。