Fig. 10
From: Length scales and scale-free dynamics of dislocations in dense solid solutions
Hurst exponents and correlation lengths of the dislocation lines for various temperatures T and external stress levels σ. (Left) Hurst exponents H1 and H2 determined with the Higuchi method as a function of the applied stress σ. H1 corresponds to small k (and l) values and H2 corresponds to large k (and l) values. (Right) Correlation length values ξ at which the Hurst exponent changes from H1 to H2 as a function of σ. The purple region shows the stress range within which the depinning transition is expected based on our simulation data. The vertical black dotted lines show the critical stress σc according to Fig. 8. The gray area shows where the smoothing of the DXA algorithm could alter the result