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Which outcome occurs when rapid cooling induces defects within lithium niobate crystal lattices?

A)An altered refractive index gradient appears
B)Increased thermal conductivity facilitates heat dissipation
C)Photovoltaic efficiency experiences stable enhancement
D)Ferroelectric properties display spontaneous alignment

💡 Explanation

Cooling introduces lattice imperfections, because these structural changes cause photo-refractive effect due to inhomogeneous stress. These strains result in modulated indices of refraction, therefore altering optical properties, rather than improved thermal transfer or stable photovoltaic changes.

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