VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesScienceQuestion
Question
Science

Which mechanism causes increased resistance when a crystal of gallium arsenide is subjected to intense strain?

A)Piezoelectric field generation
B)Band gap energy reduction
C)Impurity band delocalization
D)Phonon scattering increase

💡 Explanation

Increased strain raises the density of crystal defects, promoting phonon scattering; this impedes electron flow and increases resistance, because electrons collide more frequently with vibrating lattice atoms. Therefore, resistance rises due to phonon scattering rather than direct band gap changes.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Science