B=25-44T
pressure=[0 11 17 22]

% paramaters and error bars from Delta R data 
taus=[0.2482 0.4540 0.4460 0.5571]*1E-12
errtaus=[0.2482 0.4540 0.4460 0.5571]*1E-12*0.15


% paramaters and error bars from (Delta R)/R data
tau=[0.4651 0.6890  0.7109  1.6645]*1E-12
errtau=[0.4651 0.6890  0.7109  1.6645]*1E-12*0.15
