Halogenated Perovskites and Quantum Halides: Exploring Materials with Extraordinary Properties
Seminário do Departamento de Física dos Materiais e Mecânica com Prof. Jorge Mario Osorio Guillén (Universidad de Antioquia, Colômbia)
14/04, 2ª feira, às 16h. Na Sala de Seminários José Roberto Leite - Ed. Alessandro Volta, sala 110.
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Perovskites, materials with a versatile crystalline structure, have revolutionized fields like solar energy thanks to halogenated perovskites. But these materials also open the door to the fascinating world of quantum materials, where the rules of conventional physics are transformed. In this talk, we will explain how doping, a common process to modify the properties of semiconductors, can generate surprising results in these quantum materials. We will share the discovery of 'anti-doping' in a metal halide, K3Fe5F15, where, instead of increasing conductivity, doping reduces it, driving the material from metal to insulator. This behavior, along with the unique properties of halogenated perovskites, drives new possibilities for the development of advanced technologies in areas such as spintronics, quantum computing, and high-performance electronics.
