dorsal/arxiv
View SchemaDisorder-induced strong-field strong-localization in 2D systems
| Authors | Yi Huang, Sankar Das Sarma |
|---|---|
| Categories | |
| ArXiv ID | 2601.09687vv2 |
| URL | https://arxiv.org/abs/2601.09687 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
A recent STM experiment in 2D bilayer graphene [Y.-C. Tsui, et al., Nature 628, 287 (2024)], under a strong perpendicular magnetic field, has made a direct observation of the existence of three distinct filling-factor-dependent quantum phases in the lowest Landau level: the incompressible fractional quantum Hall liquid, a crystalline compressible hexagonal Wigner crystal with long-range order and rotational symmetry-breaking, and a random localized solid phase with no spatial order. We argue that the spatially random localized phase at low filling is the recently proposed disorder-dominated strongly localized amorphous "Anderson solid" phase [A. Babber, et al., arXiv:2601.03521], which appears generically at a sample-dependent filling factor.
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"abstract": "A recent STM experiment in 2D bilayer graphene [Y.-C. Tsui, et al., Nature 628, 287 (2024)], under a strong perpendicular magnetic field, has made a direct observation of the existence of three distinct filling-factor-dependent quantum phases in the lowest Landau level: the incompressible fractional quantum Hall liquid, a crystalline compressible hexagonal Wigner crystal with long-range order and rotational symmetry-breaking, and a random localized solid phase with no spatial order. We argue that the spatially random localized phase at low filling is the recently proposed disorder-dominated strongly localized amorphous \"Anderson solid\" phase [A. Babber, et al., arXiv:2601.03521], which appears generically at a sample-dependent filling factor.",
"arxiv_id": "2601.09687",
"authors": [
"Yi Huang",
"Sankar Das Sarma"
],
"categories": [
"cond-mat.mes-hall",
"cond-mat.str-el"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Disorder-induced strong-field strong-localization in 2D systems",
"url": "https://arxiv.org/abs/2601.09687",
"version": "v2"
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