Figure 7
Magnetic field dependence of the gap Δ (squares) evaluated using Eq. (3). Dashed line connecting the data points is guide for the eye. Dotted line is a linear fit revealing the slope Δ/H = 1.56 K/T; Inset: the same for the exponent β in Eq. (3) (circles). Vertical dashed lines denote the isosbestic point H c1 ≈ 13 T. Shaded bar indicates a crossover region between the two distinct regimes of the 7Li T 1 relaxation. (see the text).
