Mott Insulators are materials that should conduct electricity according to band theory but instead behave as insulators due to strong electron–electron interactions. In these systems, Coulomb repulsion prevents electrons from moving freely. Mott insulators are a central topic in strongly correlated electron physics. They often exhibit magnetic ordering and can transition to superconducting or metallic states under doping or pressure. Mott insulators challenge conventional solid-state theory and require many-body approaches for understanding. They are key to studying quantum phase transitions and emergent behavior. Mott insulating behavior is observed in transition metal oxides and other complex materials. These systems are crucial for understanding high-temperature superconductivity.
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