نتایج جستجو برای: dirac semimetal
تعداد نتایج: 20016 فیلتر نتایج به سال:
The recent discovery of higher-order topology has largely enriched the classification topological materials. Theoretical and experimental studies have unveiled various insulators that exhibit topologically protected corner or hinge states. More recently, been introduced to semimetals. Thus far, realistic models verifications on semimetals are still very limited. Here, we design demonstrate a th...
The Landau-Fermi liquid picture for quasiparticles assumes that charge carriers are dressed by many-body interactions, forming one of the fundamental theories of solids. Whether this picture still holds for a semimetal such as graphene at the neutrality point, i.e., when the chemical potential coincides with the Dirac point energy, is one of the long-standing puzzles in this field. Here we pres...
Three-dimensional Dirac semimetals, three-dimensional analogues of graphene, are unusual quantum materials with massless Dirac fermions, which can be further converted to Weyl fermions by breaking time reversal or inversion symmetry. Topological surface states with Fermi arcs are predicted on the surface and have been observed by angle-resolved photoemission spectroscopy experiments. Although t...
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