Researchers led by Assistant Professor Chang Guoqing at Nanyang Technological University have discovered two types of van Hove singularities in topological materials rhodium monosilicide (RhSi) and cobalt monosilicide (CoSi). These energy levels, near the Fermi level, create strong electron interactions, potentially leading to quantum properties like superconductivity and ferromagnetism. By adding metal atoms, the energy levels of these singularities can be tuned, offering new possibilities in engineering quantum materials. This breakthrough, published in Nature Physics, could pave the way for advancements in fields such as computation and energy, leveraging the unique characteristics of topological quantum materials.
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