EasySpin forum

Thank you very much! I tried again, but it seems I still could not get the result I want. The bottom two splitting (see attachment) is different from on the picture I uploaded before. Could you tell me where is the problem? Please. By the way, how can I mark the eigenstate for each level, like |1/2>...

I want to use levelsplot to see the different energy levels of ZFS (zero field splitting), for example, Fe3+ (s=5/2, I=0, g=2.0029, D=5515.5MHz,a-F=1088.1MHz,||a||=760.5MHz （i do not know how to type this parameter）), when I type the follow code, it displsys "Invalid Field name 'a-F' ", th...