Louis Néel helped develop which theory in physics?
String Theory
Antiferromagnetism
Relativity Theory
Quantum Theory
Answer
Antiferromagnetism, a theory advanced by Louis Néel, describes the magnetic ordering in certain materials where adjacent magnetic moments align in an alternating pattern, resulting in a net magnetic moment of zero. Unlike ferromagnetism, where all moments align in the same direction, antiferromagnetism arises due to competing magnetic interactions and is crucial in understanding various magnetic phenomena and the behavior of certain magnetic materials.
The Magnetic Mind: Discovering Louis Néel's Contributions to Physics
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