Lecture

Magnetic Ordering in Materials

Description

This lecture explores the concept of magnetic ordering in materials, focusing on the neglected interaction between spins and the implications for ferromagnetism and antiferromagnetism. The instructor discusses the Curie temperature, Neel temperature, and the Heisenberg Hamiltonian. The lecture covers the classical and quantum aspects of magnetic ordering, including the behavior of spins in different materials and the critical temperatures associated with magnetic phase transitions.

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