|Feb13-13, 04:46 AM||#1|
I have got confused about electron effective mass in crystals. Which of the definitions below are correct?
1) When an electron is in a crystal with periodic potential, it behaves such as a free electron with effective mass [itex]m^*[/itex]
2) when an external force is applied on the electron in a crystal, the electron behaves such as a free electron with effective mass [itex]m^*[/itex]
|Feb13-13, 06:31 AM||#2|
The first one fails to state what it means by "behavior" while the second implies F=ma ... the actual definition uses the quantum mechanical analogy to F=ma.
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