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Anisotropy Driven Transition from Moore-Read State to Quantum Hall Stripes | | Zheng Zhu
; Inti Sodemann
; D. N. Sheng
; Liang Fu
; | | Date: |
7 Mar 2017 | | Abstract: | We investigate the nature of the quantum Hall liquid in a half-filled second
Landau level ($n=1$) as a function of band mass anisotropy using numerical
exact diagonalization (ED) and density matrix renormalization group (DMRG)
methods. We find increasing the mass anisotropy induces a quantum phase
transition from the Moore-Read state to a charge density wave state. By
analyzing the energy spectrum, guiding center structure factors and by adding
weak pinning potentials, we show that this charge density wave is a
uni-directional quantum Hall stripe, which has a periodicity of a few magnetic
lengths and survives in the thermodynamic limit. | | Source: | arXiv, 1703.2167 | | Services: | Forum | Review | PDF | Favorites | |
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