We have investigated the behavior of electronic phases of the second Landau level under tilted magnetic fields. The fractional quantum Hall liquids at ν=2+1/5 and 2+4/5 and the solid phases at ν=2.30, 2.44, 2.57, and 2.70 are quickly destroyed with tilt. This behavior can be interpreted as a tilt driven localization of the 2+1/5 and 2+4/5 fractional quantum Hall liquids and a delocalization through melting of solid phases in the top Landau level, respectively. The evolution towards the classical Hall gas of the solid phases is suggestive of antiferromagnetic ordering.
@article{arxiv.cond-mat/0412598,
title = {Tilt Induced Localization and Delocalization in the Second Landau Level},
author = {G. A. Csathy and J. S. Xia and C. L. Vicente and E. D. Adams and N. S. Sullivan and H. L. Stormer and D. C. Tsui and L. N. Pfeiffer and K. W. West},
journal= {arXiv preprint arXiv:cond-mat/0412598},
year = {2009}
}