Double-layer quantum Hall systems at total filling factor νT=1 can exhibit a commensurate-incommensurate phase transition driven by a magnetic field B∥ oriented parallel to the layers. Within the commensurate phase, the lowest charge excitations are believed to be linearly-confined Meron pairs, which are energetically favored to align with B∥. In order to investigate this interesting object, we propose a gated double-layer Hall bar experiment in which B∥ can be rotated with respect to the direction of a constriction. We demonstrate the strong angle-dependent transport due to the anisotropic nature of linearly-confined Meron pairs and discuss how it would be manifested in experiment.
@article{arxiv.cond-mat/9701224,
title = {Anisotropic Transport of Quantum Hall Meron-Pair Excitations},
author = {Kyungsun Moon and Kieran Mullen},
journal= {arXiv preprint arXiv:cond-mat/9701224},
year = {2016}
}