Dirac Materials are systems in which low-energy electronic excitations are governed by the Dirac equation. In these materials, electrons behave as relativistic Dirac fermions with linear energy–momentum dispersion. Examples include graphene and certain topological materials. Dirac materials exhibit high carrier mobility, unconventional quantum Hall effects, and unusual optical responses. Their electronic properties are robust and tunable, making them promising for high-speed electronics and optoelectronic devices. Dirac materials allow exploration of relativistic quantum effects in a condensed matter setting. They provide insight into symmetry, topology, and electronic correlations. Research in Dirac materials continues to uncover novel transport and quantum phenomena relevant to future technologies.
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Vladimir Chigrinov, Hong Kong University of Science and Technology, Hong Kong
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Thomas J Webster, Brown University, United States
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