Title
There's Plenty of Cities at the bottom!
Technique
Optical microscopy
Description
Crack patterning across the entire surface of an epitaxial VO2 thin film grown on TiO2(001). Metallic VO2 domains are framed by the insulating VO2 regions that cracks induce around them. The resulting view reminds to a city, with its blocks and streets describing such a perfect rectangular shapes.

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Technical specifications
Image taken by means of our Zeiss Axio optical microscope, using natural light, in reflexion bright field mode with 20x magnification at room temperature.
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