[QE-users] Shifting of Fermi level by applying bi-axial strain

[Rajneesh Chaurasiya]

Dear All,

I have computed the electronic band structure under the compression and
tensile strain. Change in the conduction band minima and valance band
maxima are slightly shifted with strain which i have also verified from the
WIEN2K but when i add or subtract the Fermi energy, then i observed in some
cases, Fermi level close to conduction and some cases the Fermi energy
close to valance band. since by applying the strain the types of
semiconductor behavior (n type or p type) does not change. then why the
Fermi level is shifted close to valance band maxima or conduction band
minima. such types of behavior are not observed in the WIEN2k. why the
Fermi level is shifted according to strain?

-- 
Thanks & Regards
Rajneesh Chaurasiya
Research Scholar
IIT Jodhpur, India
Mob. No. +91-9584499697
              +91-7610950803
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