Debanjana adhikari Asked a Question
May 19, 2020 10:32 ampts 30 pts
In a band structure calculation, the dispersion relation for electrons is found to be 6, = Plcosk,a + cosk,a + cosk,a) where ß is a constant and a is the lattice constant. The effective mass at the boundary of the first Brillouin zone is h C)2a (a) (b)4 Spa Sa2 d) 3pa
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  • Dhairya sharma
    dear I already attached it's solution plz see that.
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  • Debanjana adhikari
    how can we take the derivative w.r.t dk & do the derivative on R.H.S w.r.t dkx, dky, & dkz??
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  • Ruby negi thankyou
    solution.... remember the formula of effective mass as sometimes question I'm this topic is directly formula based..this ques is also formula based only u have to remember formula....
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  • Dhairya sharma thankyou
    dear see attached
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  • Chandra dhawan Best Answer
    see attached file it's very helpful for you dear
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