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What is the temperature, above which a ferromagnetic substance shows no ferromagnetism called?

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in Chemistry – Class 12 by (188k points)
What is the temperature, above which a ferromagnetic substance shows no ferromagnetism called?

(a) Curie temperature

(b) Néel temperature

(c) Critical temperature

(d) There exists no such temperature

I had been asked this question in an online interview.

This question is from Solid State Magnetic Properties in division Solid State of Chemistry – Class 12

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Correct answer is (a) Curie temperature

The explanation: The Néel temperature or magnetic ordering temperature is the temperature above which an antiferromagnetic material becomes paramagnetic. The Critical temperature of a gas is the temperature above which it cannot be liquefied by pressure alone. The temperature above which a ferromagnetic substance shows no ferromagnetism is called Curie temperature.

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