defining different g tensors for coupled spins

[ct821]

Hi all.

Was wondering if EasySpin can actually handle having two different g tensors.

For example,

Sys.S = [1/2 1/2];

g = [2.0033416 0.0002885 -0.0009103;
0.0000620 2.0038267 0.0003742;
-0.0008922 0.0002308 2.0030146];

r1 = eul2rotm(deg2rad([-173.0, 7.2, 148.2]), 'XYZ');
g1 = r1gr1';

r2 = eul2rotm(deg2rad([178.4, 14.2, -179.4]), 'XYZ');
g2 = r2gr2';

Sys.g = [g1; g2];

does this code work?

Thanks in advance

[katarkon]

The code seems to be right. But Sys.gFrame seems to be a better way. Also, there are no need to define full matrix for g-tensor, the principal values should be enough.

[ct821]

How would I define gFrame for each spin though?

[katarkon]

Sys.gFrame = [0 10 0; 23 -45 67]*pi/180; % two electron spins