 that plane: *u*=(0,1,0)
% and *v*=(0,0,1).

banbSpec = banb.spinwave({[0 -1 1] [0 -1 -2] 500});
banbSpec.hkl  = -banbSpec.hkl;
banbSpec.hklA = -banbSpec.hklA;
banbSpec = sw_neutron(banbSpec,'pol',true,'uv',{[0 1 0] [0 0 1]});

figure
banbSpec = sw_egrid(banbSpec,'component','Sperp','Evect',linspace(0,6,500));
sw_plotspec(banbSpec,'mode','color','dE',0.25,'axLim',[0 10]);
tString = sprintf('\\epsilon_T = %+d, \\epsilon_\\Delta = %+d, \\epsilon_H = %+d',eD,eT,eH);
title(tString,'fontSize',16)
colormap(jet)

