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← ScienceWhich risk increases for magnetic data storage when the storage temperature nears the Curie temperature?
A)Reduced coercivity erases stored data✓
B)Increased domain wall density occurs
C)Giant magnetoresistance degrades abruptly
D)Magnetostriction causes mechanical failures
💡 Explanation
Reduced coercivity can cause data loss because thermal energy overcomes the energy barrier maintaining magnetization. Therefore domains spontaneously randomize and data is erased, rather than showing increased wall density which typically increases at lower temperatures.
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