Micromagnetic simulation dataset for current-driven Néel skyrmion transport in a granular ferromagnetic track: 98-run ensemble across 20 seeds with seed-resolved depinning thresholds

This dataset contains the complete post-processed numerical results from 98 independent MuMax3 micromagnetic simulations of current-driven Néel skyrmion transport in a generic Co/Pt-like perpendicular-magnetic-anisotropy thin-film racetrack with Voronoi grain-wise anisotropy disorder. The dataset spans:- Disorder amplitude δ from 0 to 0.10 (8 values);- Two independent seed pools (S5/S8 and S12new) with 20 distinct disorder realisations in total;- Two run lengths (50 ns for Phase 1, 30 ns for Phase 2);- A fixed-drive disorder scan at J* = 3 × 10¹¹ A m⁻² together with a low-drive sweep (2 × 10¹⁰ to 1 × 10¹¹ A m⁻²) for clean-branch calibration. The principal physical findings supported by this dataset are: (i) a single-parameter rigid-Thiele calibration with D_fit = 16.35 that reproduces the clean transport benchmark to within 1.3% in drift speed and 0.35° in Hall angle; (ii) zero bulk-annihilation events across all 98 runs — every topological-charge-loss event is a boundary exit (finite-box artefact); (iii) a three-regime depinning crossover with δ_cross ≈ 0.05 reproducing within Wilson 95% confidence intervals across two independent seed pools; and (iv) an empirical seed-resolved depinning-threshold distribution P(δ_c) with clusters at δ_c = 0.05 and δ_c = 0.08. The dataset accompanies the manuscript "Disorder-driven breakdown of rigid-Thiele skyrmion transport in a ferromagnetic track: a seed-resolved depinning-threshold distribution" by Shi Haohan (2026, submitted). See the README.md file for the complete sheet-by-sheet structure of the master spreadsheet, column glossary, regime classification rules, and simulation parameters.