Definition
Plain language
When surrounding charges cancel out an electric field so it can't reach where you wanted it.
As stated in the literature
Electrostatic gate screening: mobile charge and dielectric response attenuate the applied field, limiting channel modulation in molecular-scale devices.
Also called: electrostatic gate screening
Why it matters: It is a basic physical obstacle that makes some claimed molecular devices implausible, and a useful reality check on reported results.
For example, an electric field meant to switch a molecular device on can be cancelled out by stray charges before it ever reaches the molecules.
Heard on the show
“Everyone takes the outfit off before screening, so the judges see the mathematics, not the presentation.”Episode 133 — How MiniMax Turned a Reward-Hacking Disaster Into Olympiad Gold