2026-10-14T07:46:44Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33734440 2026-09-14T11:50:33Z portal_1197 item_type_3 month_year_09_2026

Dataset for Exchange-mediated dynamic screening in the integer quantum Hall effect regime Rudolf A. Römer (21815984) J. Oswald (24793312) Quantum Hall effect Electrons Magnetic fields Quantum field theory Electron transport Mesoscopic phenomena (Physics) Migrated from ePrints We study many-body interaction effects in the spatially-resolved filling factor (ν) distribution for higher Landau levels (LLs) via self-consistent Hartree-Fock simulations in the integer quantum Hall (IQH) regime. Our results indicate a strong, interaction-induced tendency to avoid the simultaneous existence of partially filled spin-up and spin-down LLs. Rather, we find that such partially filled LLs consist of coexisting regions of full and empty LLs. At the boundaries between the regions of full and empty LLs, we observe edge stripes of nearly constant ν close to half filling. This suggests that the exchange interaction induces a behavior similar to a Hund’s rule for the occupation of the spin split LLs. The screening of the disorder and edge potential appears significantly reduced as compared to static Thomas-Fermi screening [1]. Our results are consistent with a local, lateral ν dependence of the exchange-enhanced spin splitting. Hence, on quantum-coherent length scales as probed here, the electron system of the IQH effect behaves similar to a non-interacting single particle system — not because of the absence, but rather due to the dominance of many-body effects.<br><br>hall_edge1_ns1-data-21050_ECs2_21050 to hall_edge1_ns1-data-21050_ECs2_21250 and ECs2_21050 to ECs2_21250 2017-02-15T00:00:00Z Dataset Dataset 10.82444/warw.33734440.v1 https://figshare.com/articles/dataset/Dataset_for_Exchange-mediated_dynamic_screening_in_the_integer_quantum_Hall_effect_regime/33734440 CC BY-SA 2.0