VO2-BASED SMART WINDOWS

The strong correlations in transition-metal oxides and the orbital modulation (i. e. degeneracy) generate spins and orbitals as low-energy degrees of freedom. Their interplay with both real-charge motion and virtual-charge excitations lead to a fascinating richness of spin–charge–orbital-ordered phases in transition-metal oxides, to striking phenomena like the colossal magnetoresistance in manganites, the switching of charge-ordered phases into metallic phases by applied magnetic field, and many other fascinating effects. The constant and technologically relevant need of adjusting the transition temperature to suit different needs has generated an impressive number of experimental studies. As a general rule, in all published studies the stability of the metallic phase over temperature is associated with the lattice distortion along the metal- metal bond direction and its effect on the bandwidth.1,2 

Mobirise

Based on the above theoretical considerations the project scope is to grow high-quality VO2 thin films with the main objective of controlling the phase transition temperature via epitaxial induced strain.

References:
1. Mihailescu, C. N. et al. J. ACS Appl Mater Interfaces 10(16):14132-14144, 2018.
2. Kronmüller; H. Stuart et al., Handbook of magnetism and advanced magnetic materials, John Wiley & Sons, 2007.

Contact

Address

Str. Atomistilor 409, PO BOX MG-36, Magurele, ILFOV
RO-077125
ROMANIA                         

Email

cristi.mihailescu@inflpr.ro     

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