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Which outcome occurs when strain modifies the band structure?

A)Piezoelectric voltage offset is generated
B)Increased material brittleness occurs
C)Higher thermal expansion coefficient
D)Ductile fracture propagation enhances

💡 Explanation

Piezoelectricity results because strain changes the crystalline lattice, impacting the electronic band structure via the deformation potential. This generates charge rather than causing brittleness or thermal expansion effects which relate to bulk properties under high temperature.

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