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Which outcome occurs when rapid cooling introduces defects into a silicon crystal lattice?

A)Reduced carrier mobility and lifetime
B)Increased thermal conductivity magnitude
C)Higher saturation magnetization magnitude
D)Elevated electron-phonon scattering rate

💡 Explanation

Carrier mobility decreases during rapid cooling because point defects cause increased phonon scattering via Umklapp scattering. This introduces imperfections altering the electron band structure’s periodicity and impede transport, rather than raising conductivity; therefore lower mobility, not higher magnetization, results.

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