Electrons cannot follow the applied A.C field

photon79
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what does it really mean by saying that "electrons cannot follow the applied A.C field!" ?? (hence the wave vector is complex!)
 
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are you talking about high frequency phenomena? Would you give us any additive explanations?
 
photon79 said:
what does it really mean by saying that "electrons cannot follow the applied A.C field!" ?? (hence the wave vector is complex!)
Please state the source.
 

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