Fig. 4: Enhanced magnetic response of the charge order with applying external magnetic fields.

a Fourier transform of the μSR asymmetry spectra for a mosaic of single crystals of ScV₆Sn₆ at 3 K in the presence of an applied field of μ₀H = 8T. The blue solid line is a two-component signal fit. The peaks marked by the arrows denote the external and internal fields, determined as the mean values of the field distribution from the silver sample holder and from the sample, respectively. The short-time-window apodization function was used in the Fourier transform amplitude plot. Inset shows the schematic high-field μSR experimental setup. The sample was surrounded by 2 × 8 positron detectors, arranged in rings. The specimen was mounted in a He gas-flow cryostat with the largest face perpendicular to the muon beam direction, along which the external field was applied. Behind the sample lies a veto counter (in orange) which rejects the muons that do not hit the sample. b Temperature dependence of the high transverse field muon spin relaxation rate σ_TF for the single crystal of ScV₆Sn₆, normalized to the value at 300 K, measured under different c-axis magnetic fields. The vertical gray lines mark the charge ordering temperature, determined from specific heat measurements. The error bars represent the standard deviation of the fit parameters.