N. Shibata et D. Yoshioka, Ground-state phase diagram of 2D electrons in a high landau level: A density-matrix renormalization group study, PHYS REV L, 86(25), 2001, pp. 5755-5758
The ground-state phase diagram of 2D electrons in a high Landau level tinde
r N = 2) is studied by the density-matrix renormalization group method. Pai
r correlation functions ale systematically calculated for various filling f
actors from nu = 1/8 to 1/2. It is shown that the ground-state phase diagra
m consists of three different:charge density wave states called stripe phas
e, bubble: phase, and Wigner crystal. The boundary between the stripe and t
he bubble phases is determined to be nu (s-b)(c) similar to 0.38 and that f
or the bubble phase and Wigner crystal is nu (b-W)(c) similar to 0.24. Each
transition is of first order.