Insulator or superconductor? Physicists find graphene is both

Re:Insulator or superconductor? Physicists find graphene is ... by ben_w on Monday March 05, 2018 @01:40PM (#16523221)

Super-transistor. This may have significant implications outside computing, perhaps a switchable Casimir cavity (how do superconductors respond to non-DC currents?)

I didn’t see a critical temperature for this in the article, only “100K” for related classes of material. Anyone know the Tc of this?

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Re:Insulator or superconductor? Physicists find graphene is ... by mohaine on Monday March 05, 2018 @03:05PM (#16523914)

> how do superconductors respond to non-DC currents?

My understanding is "Poorly". As in not a superconductor for AC for current superconductors.

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Re:Insulator or superconductor? Physicists find graphene is ... by emiliobumachar on Monday March 05, 2018 @02:25PM (#16523625)

Super-transistor? I hate to stomp on innovation, but, mechanically rotating parts of a transistor to switch it would seem like a large step backwards relative to the electrically-switchable status quo.

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Re:Insulator or superconductor? Physicists find graphene is ... by skykooler on Monday March 05, 2018 @03:12PM (#16523971)

It's switched by a gate voltage.

> The researchers continued to measure the electrical resistance of the material, and found that when they added a certain, small amount of electrons, the electrical current flowed without dissipating energy — just like a superconductor.

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