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High temperature fractional quantum Hall states

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arxiv 1012.2930 v4 pith:OPXUNSTV submitted 2010-12-14 cond-mat.str-el

High temperature fractional quantum Hall states

classification cond-mat.str-el
keywords flatfractionalgivehallhighquantumrisestates
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We show that a suitable combination of geometric frustration, ferromagnetism and spin-orbit interactions can give rise to nearly flat bands with a large bandgap and non-zero Chern number. Partial filling of the flat band can give rise to fractional quantum Hall states at high temperatures (maybe even room temperature). While the identification of material candidates with suitable parameters remains open, our work indicates intriguing directions for exploration and synthesis.

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  1. Superconductivity and non-Fermi liquid metals in a charge-1/3 anyon fluid

    cond-mat.str-el 2026-06 unverdicted novelty 5.0

    Doping a fractional Chern insulator yields an anyon fluid that can form an SC* superconductor with residual Z2 order or a non-Fermi liquid Z3 orthogonal metal.