The energy of an electron in a band as a function of its wave vector k is given by E(k)= Е – B(coska+coska+cosk_a), where E, B and a are constants. The effective mass of the electron near the bottom of the band is
The energy of an electron in a band as a function of its wave vector k is given by E(k)= Е – B(coska+coska+cosk_a), where E, B and a are constants. The effective mass of the electron near the bottom of the band is
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Transcribed Image Text:The energy of an electron in a band as a function of its wave vector k is given
by E(k)= E₁ – B(coska+coska+coska), where E, B and a are constants. The
0
effective mass of the electron near the bottom of the band is
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