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← ScienceWithin a semi-metal, which outcome occurs when strain alters the band overlap?
A)Semiconductor behavior emerges at equilibrium.✓
B)Increased phonon scattering inhibits conductance.
C)Ferromagnetism spontaneously becomes paramagnetism.
D)Higher-energy photons produce stimulated emission.
💡 Explanation
A change in band overlap caused by strain modifies the electronic structure, leading to band gap formation via the Peierls distortion. Therefore, semiconducting behavior occurs rather than maintained metallic properties, because an energy gap appears rather than remaining forbidden.
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