Osaka University and Italian researchers show their nanowire resonators can be used to miniaturize energy-efficient electronics

Computers that fit in our pockets, television screens no thicker than a door, and cars only slightly bigger than their passengers, technology is constantly getting smaller.

"Transition metals undergo an insulator to metal transition.

Tanaka found that the freestanding character of the wire is key, as otherwise the non-linearity and thus the energy efficiency was much less.

Metal oxides are very stiff and brittle.

We could fabricate the nanowires by growing them on magnesium oxide (MgO) and then etching the MgO layer away."

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