Magnetic topological insulators are an exotic class of materials that conduct electrons without any resistance at all and so are regarded as a promising breakthrough in materials science. Researchers from the Cluster of Excellence ct.qmat in Würzburg and Dresden have achieved a significant milestone
in the pursuit of energy-efficient quantum technologies by designing the ferromagnetic topological insulator MnBifrom the manganese bismuth telluride family. The amazing thing about this quantum material is that its ferromagnetic properties only occur when some atoms swap places, introducing antisite disorder. The findings have been published in the journalIn 2019, an international research team headed by materials chemist Anna Isaeva, at that time a junior professor at ct.
qmat – Complexity and Topology in Quantum Matter, caused a stir by fabricating the world’s first antiferromagnetic topological insulator – manganese bismuth telluride . This remarkable material has its own internal magnetic field, paving the way for new kinds of electronic components that can store information magnetically and transport it on the surface without any resistance. This could revolutionize computers by making them more sustainable and energy-efficient.
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