Ground-State Phase Diagram of 2D Electrons in a High Landau Level: A Density-Matrix Renormalization Group Study

Journal Article · Mon Jun 18 04:00:00 EDT 2001 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.86.5755· OSTI ID:40204684

Shibata, Naokazu; Yoshioka, Daijiro

The ground-state phase diagram of 2D electrons in a high Landau level (index N=2 ) is studied by the density-matrix renormalization group method. Pair correlation functions are systematically calculated for various filling factors from {nu}=1/8 to 1/2 . It is shown that the ground-state phase diagram consists of three different charge density wave states called stripe phase, bubble phase, and Wigner crystal. The boundary between the stripe and the bubble phases is determined to be {nu}{sup s-b}{sub c}{similar_to}0.38 , and that for the bubble phase and Wigner crystal is {nu}{sup b-W}{sub c}{similar_to}0.24 . Each transition is of first order.

• Sponsoring Organization: (US)
• OSTI ID: 40204684
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 86; ISSN 0031-9007
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BUBBLES
CHARGE DENSITY
CORRELATION FUNCTIONS
DENSITY MATRIX
ELECTRONS
PHASE DIAGRAMS
RENORMALIZATION