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Materials and Components

Q1:

The temperature below which certain materials are antiferromagnetic and above which they are paramagnetic is called

A Weiss temperature

B Curie temperature

C Neel temperature

D None of the above

ANS:C - Neel temperature

The Neel temperature or magnetic ordering temperature, TN, is the temperature above which an antiferromagnetic or ferrimagnetic material becomes paramagnetic-that is, the thermal energy becomes large enough to destroy the macroscopic magnetic ordering within the material.



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