Fig. 3

Experimental ln T1 relaxation times plotted as a function of the inverse temperature (1/T). The error bars represent an upper limit on instability in the temperature and the uncertainty of the T1 relaxation time measurements

Experimental ln T1 relaxation times plotted as a function of the inverse temperature (1/T). The error bars represent an upper limit on instability in the temperature and the uncertainty of the T1 relaxation time measurements