fractional quantum Hall effect

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fractional quantum Hall effect

[¦frak·shən·əl ′kwän·təm ′hȯl i‚fekt]
(electronics)
The version of the quantum Hall effect in which the Hall resistance becomes precisely equal to h /(p / q) e 2, where h is Planck's constant, e is the electronic charge, q is an odd integer, and p is an integer not divisible by q.