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Tunneling in Fermi Systems with Quadratic Band Crossing Points
: Received: 4 June 2020 / Approved: 5 June 2020 / Online: 5 June 2020 (14:13:37 CEST)
We investigate the tunneling of quasiparticles through a potential barrier of finite height and width, in a system with a band structure consisting of a quadratic band crossing point (QBCP). We compute the results of the transmission coefficient at various incident angles, and also the conductivity and the Fano factor. We discuss the distinguishing signatures of these transport properties in comparison with other semimetals, as well as electrons in normal metals.
quadratic band touching semimetal; transmission coefficient
Physical Sciences, Condensed Matter Physics
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