there are two known mechanisms: friction heating( which may cause several degrees temperature increase) and induced AC current heating( in this paper:Electrical and ionic conductivity effects on magic-angle spinning nuclear magnetic resonance parameters of CuI. which can heat sample over 100 Celsius.) My question is, has any body seen this heating in MAS NMR?

there are two known mechanisms: friction heating( which may cause several degrees temperature increase) and induced AC current heating( in this paper:Electrical and ionic conductivity effects on magic-angle spinning nuclear magnetic resonance parameters of CuI. which can heat sample over 100 Celsius.) My question is, has any body seen this heating in MAS NMR?