Highly disordered VO2 films: appearance of electronic glass transition and potential for device-level overheat protection

In this work, the phase transition of a highly disordered amorphous VO2 film is studied. It is found that the electronic transport behavior follows the Arrhenius or Vogel-Tammann-Fulcher model, showing different thermal sensitivity under different thicknesses. Based on it, the concept of a prototype device with overheating protection capability is demonstrated. The results, reflecting the relationship between phase transition and structural disorder, open up a unique pathway to understand the metal insulator transition in strongly correlated electronic systems and to its functionality in electronic devices.

Automated summary

This work investigates the phase transition of a highly disordered amorphous VO2 film and finds that its electronic transport behavior is influenced by the film's thickness, showing different thermal sensitivity. The study also introduces the concept of a prototype device with overheating protection capability, providing a unique pathway to understand the metal-insulator transition in strongly correlated electronic systems and its functionality in electronic devices.