More efficient switching transistors aren't just a big deal for power supplies. Those devices are also used in Variable Frequency Drives (VFD) for large motors and even medium voltage (typically around 4 kV) motor systems.

The impact of even slightly higher efficiency for a VFD is a big deal for industrial applications.

Such an article but no mention of the conductivity of the material? I am tired of reading such informationless news blurbs.

The article in the literature linked let me read it all, full text with no paywall. Better go check it out.

The conductivity is not of the material, but of the 2D electron gas formed at the junction of the two materials. At 300K it's 1.25 +/- 0.02 mS sheet conductivity. See table 2. The details of exactly how this was obtained are extremely relevant. In addition note that this is a 2D material, so sheet conductivity is given rather than bulk conductivity. You should read the paper.

Such an article but no mention of the conductivity of the material? I am tired of reading such informationless news blurbs.

It's free news tho... but if you regain your strength then the linked article is open-access, it's free to read, but I'm tired too...

Worth mentioning that both strontium and neodymium are relatively common, though use in electric vehicles' motors' magnetic components has driven up the price of neodymium. In the quantities likely to be used in semiconductor applications like this one, this is not a significant barrier to widespread use in power transistors.

Also worth mentioning that the sheet conductivity here is nearly comparable with that of graphene.

And finally, the authors of the papers are more interested in comparing THz spectroscopy with 4-terminal sensors for measuring sheet conductivity than in the capabilities of the material; there seems to be some marketing hyperbole operating to veer the focus of the article toward applications of the materials rather than the measurement techniques that the authors of the original scholarly paper find most interesting.

I definitely recommend reading the scholarly paper for a fuller understanding of the subject.

Better power transistors, yes. better CPU? no not really.
High frequency isn't so dependent on resistance.

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