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← ScienceWhich constraint increases when dislocations distort metallic crystal's band structure?
A)Electron mean free path decreases✓
B)Phonon scattering becomes negligible
C)Curie temperature remains constant
D)Superconductivity critical field increases
💡 Explanation
Increased dislocations introduce localized electron states, narrowing the conduction bands; therefore, the electron's unrestricted movement is limited because the increased Electron-phonon interaction shortens the mean free path, rather than other changes that band modification doesn't directly affect.
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