Physics · Solid State Physics
A semiconductor has the dispersion relation E = E0 - A cos(αkx), where A and α are positive constants. The effective electron mass close to the minimum energy is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ℏ2A2α
- 214 ℏ2A2α
- 3ℏ2Aα2✓
- 412 ℏ2Aα2
Correct answer
ℏ2Aα2
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