Tuning the hysteresis of a metal-insulator transition via lattice compatibility

• DOI: 10.1038/s41467-020-17351-w
• Publication Date: 2020-07-15T10:04:02Z
• Authors: Y. G. Liang; S. Lee; H. S. Yu; H. R. Zhang; Y. J. Liang; P. Y. Zavalij; X. Chen; R. D. James; L. A. Bendersky; A. V. Davydov; X. H. Zhang; I. Takeuchi
• Keywords: Hysteresis; Diffusionless transformation; Lattice (music); Lattice constant

Structural phase transitions serve as the basis for many functional applications including shape memory alloys (SMAs), switches based on metal-insulator (MITs), etc. In such materials, lattice incompatibility between phases often results in a thermal hysteresis, which is intimately tied to degradation of reversibility transformation. The non-linear theory martensite suggests that hysteresis martensitic transformation solely determined by constants, and conditions proposed geometrical compatibility have been successfully applied minimizing SMAs. this work, we apply strongly correlated oxide system (W doped VO2), show MIT can be directly tuned adjusting constants phases. underscore profound influence structural has intrinsic electronic properties, indicate provides universal guidance optimizing transforming materials.