[Pw_forum] about raman tensor

[li yan]

dear all,
    i followed the example15 of pwscf whose version is 2.1.3 to calcutlate the raman tensor. does anyone know how to get the units of the ramman tensor given by the example15. would you please tell me the where i can find the definition of the raman tensor  in the source codes of pwscf. so maybe i can understand the output file alas.ram. 
regards! 

		
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