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Which risk increases when gallium arsenide crystals experience strain?

A)Reduced electron mobility occurs
B)Improved optical transparency results
C)Increased thermal conductivity arises
D)Enhanced piezoelectric effect appears

💡 Explanation

Lower electron mobility affects high frequency devices; strain alters the crystal lattice via the deformation potential mechanism. The band structure changes; therefore, mobility usually decreases, rather than an increase in conductivity, because lattice regularity lowers resistance in the crystal.

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