Research paperTheoreticalThermal crossover from a Chern insulator to a fractional Chern insulator in pentalayer grapheneSankar Das Sarma, Ming XiearXiv·2024·10.1103/PhysRevB.110.155148·arXiv:2408.10931AbstractBy theoretically analyzing the recent temperature dependent transport data in pentalayer graphene, we establish that the experimentally observed transition from low-temperature quantum anomalous Hall effect to higher-temperature fractional quantum anomalous Hall effect is a crossover phenomenon arising from the competition between interaction and disorder energy scales, with the likely zero temperature ground state being either a localized insulator or a Chern insulator with a quantized anomalous Hall effect.Read more
Research paperTheoreticalThermal crossover from a Chern insulator to a fractional Chern insulator in pentalayer grapheneSankar Das Sarma, Ming XiearXiv·2024·10.1103/PhysRevB.110.155148·arXiv:2408.10931AbstractBy theoretically analyzing the recent temperature dependent transport data in pentalayer graphene, we establish that the experimentally observed transition from low-temperature quantum anomalous Hall effect to higher-temperature fractional quantum anomalous Hall effect is a crossover phenomenon arising from the competition between interaction and disorder energy scales, with the likely zero temperature ground state being either a localized insulator or a Chern insulator with a quantized anomalous Hall effect.Read more
Research paperTheoreticalThermal crossover from a Chern insulator to a fractional Chern insulator in pentalayer grapheneSankar Das Sarma, Ming XiearXiv·2024·10.1103/PhysRevB.110.155148·arXiv:2408.10931AbstractBy theoretically analyzing the recent temperature dependent transport data in pentalayer graphene, we establish that the experimentally observed transition from low-temperature quantum anomalous Hall effect to higher-temperature fractional quantum anomalous Hall effect is a crossover phenomenon arising from the competition between interaction and disorder energy scales, with the likely zero temperature ground state being either a localized insulator or a Chern insulator with a quantized anomalous Hall effect.Read more
Research paperTheoreticalThermal crossover from a Chern insulator to a fractional Chern insulator in pentalayer grapheneSankar Das Sarma, Ming XiearXiv·2024·10.1103/PhysRevB.110.155148·arXiv:2408.10931AbstractBy theoretically analyzing the recent temperature dependent transport data in pentalayer graphene, we establish that the experimentally observed transition from low-temperature quantum anomalous Hall effect to higher-temperature fractional quantum anomalous Hall effect is a crossover phenomenon arising from the competition between interaction and disorder energy scales, with the likely zero temperature ground state being either a localized insulator or a Chern insulator with a quantized anomalous Hall effect.Read more
