Weak modulation phase diagram

Figure 4.15. Phase diagram of q versus R/T. Symbols are the results of exact calculations based on Eqs. (A.47) and (A.48) as v/F is varied from the lower left to the upper right cases 0.01 (downward triangle), 0.1 (upward triangle), 1 (diamond), 10 (square), and 100 (circle). The dashed curves are calculations based on appropriate approximate expressions of Q for each case, Eqs. (4.80) (weak modulation), (4.64), (strong, slow modulation), and (4.77) (strong, fast modulation).

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