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← ScienceWhich outcome results when gallium arsenide crystals experience very high pressure?
A)Crystal structure phase transformation occurs✓
B)Increased electron-hole recombination rate
C)Material reaches superconducting state
D)Significantly increased thermal conductivity
💡 Explanation
High pressure induces a change in crystal packing, causing a phase transformation because the internal energy is minimized with a different crystal structure involving bond distortions, therefore the crystal structure changes, rather than properties changing such increased conductivity that require different mechanisms.
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