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arXiv · 1008.2631

Modulation Induced Phase Transition from Fractional Quantum Hall to Stripe State at nu=5/3

Akira Endo·Naokazu Shibata·Yasuhiro Iye
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Abstract

We have investigated the effect of unidirectional periodic potential modulation on the fractional quantum Hall (FQH) state at filling factors nu=5/3 and 4/3. For large enough modulation amplitude, we find that the resistivity minimum at nu=5/3 gives way to a peak that grows with decreasing temperature. Density matrix renormalization group calculation reveals that phase transition from FQH state to unidirectional striped state having a period sim 4 l (with l the magnetic length) takes place at nu=1/3 (equivalent to nu=5/3 by the particle-hole symmetry) with the increase of the modulation amplitude, suggesting that the observed peak is the manifestation of the stripe phase.

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Akira Endo, Naokazu Shibata, Yasuhiro Iye. 2010-08-23. Modulation Induced Phase Transition from Fractional Quantum Hall to Stripe State at nu=5/3. https://doi.org/10.1143/jpsj.79.103707

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