Counterpropagating Modes at v=2/3 FQH Confirmed by Purdue Heterostructures

Purdue University

In 2018, a team of physicists at Purdue University invented a device which experimentally showed quasiparticles interfering for the first time in the fractional quantum Hall effect at filling factor v=1/3. Further development of these heterostructures has allowed the Manfra Group to expand their research to experiments that explore counterflowing charged edge modes at the 2/3 fractional quantum Hall state.

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