title: Competing crystal phases in the lowest Landau level.
abstract: We show that the solid phase between the 1/5 and 2/9 fractional quantum Hall states arises from an extremely delicate interplay between type-1 and type-2 composite fermion crystals, clearly demonstrating its nontrivial, strongly correlated character. We also compute the phase diagram of various crystals occurring over a wide range of filling factors and demonstrate that the elastic constants exhibit nonmonotonic behavior as a function of the filling factor, possibly leading to distinctive experimental signatures that can help mark the phase boundaries separating different kinds of crystals.
authors.affiliation: Department of Physics, 104 Davey Lab, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
authors.forename: Alexander C
authors.initials: AC
authors.lastname: Archer
authors.forename: Kwon
authors.initials: K
authors.lastname: Park
authors.forename: Jainendra K
authors.initials: JK
authors.lastname: Jain