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A comment on Physicists Have Identified a Metal That Conducts Electricity But Not Heat (2017). Parent comment

Re:Physicists Have Identified a Metal That Conducts Electric... by twic on Sunday December 01, 2019 @09:17AM (#21675569)
> But a team in the US showed this isn't the case for metallic vanadium dioxide (VO2) - a material that's already well known for its strange ability to switch from a see-through insulator to a conductive metal at the temperature of 67 degrees Celsius (152 degrees Fahrenheit).

The next time you need to do whale sous-vide, i think.

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Re:Physicists Have Identified a Metal That Conducts Electric... by the8472 on Sunday December 01, 2019 @09:52AM (#21675696)
The transition temperature can be tuned with dopants[0]. And the switching happens from transparent at low temperatures to reflective at higher temperatures.

That said, its highest transmittance is in the infrared, it's not that great in the visible spectrum.

[0] https://dr.ntu.edu.sg/bitstream/handle/10220/25845/for-your-...

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