Generalized Hamiltonian for Kekulé graphene and the emergence of valley-cooperative Klein tunneling
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DOI: 10.1103/physrevb.105.125139
Abstract: We introduce a generalized Hamiltonian describing not only all topological phases observed experimentally in Kekulé graphene (KekGr) but predicting also new ones. These phases show features like a quadratic band crossing point, valley splitting, or… read more here.
Keywords: valley; generalized hamiltonian; klein tunneling; kekul graphene ... See more keywords
Molecular Collapse States in Graphene/WSe_{2} Heterostructure Quantum Dots.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.076202
Abstract: In relativistic physics, both atomic collapse in a heavy nucleus and Hawking radiation in a black hole are predicted to occur through the Klein tunneling process that couples particles and antiparticles. Recently, atomic collapse states… read more here.
Keywords: collapse; quantum dots; molecular collapse; klein tunneling ... See more keywords
Andreev Reflection and Klein Tunneling in High-Temperature Superconductor-Graphene Junctions.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.156201
Abstract: Scattering processes in quantum materials emerge as resonances in electronic transport, including confined modes, Andreev states, and Yu-Shiba-Rusinov states. However, in most instances, these resonances are driven by a single scattering mechanism. Here, we show… read more here.
Keywords: graphene; reflection klein; graphene junctions; klein tunneling ... See more keywords