Dirac/Weyl-node-induced oscillating Casimir effect

نویسندگان

چکیده

The Casimir effect is a quantum phenomenon induced by the zero-point energy of relativistic fields confined in finite-size system. This for photon has been studied long time, while realization counterparts fermion Dirac/Weyl semimetals an open question. We theoretically demonstrate typical properties electron and show results from effective Hamiltonian realistic materials such as Cd$_3$As$_2$ Na$_3$Bi. find oscillation function thickness thin film, which stems existence nodes momentum space. Experimentally, can be observed films semimetals, where dependence thermodynamic quantities affected energy.

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ژورنال

عنوان ژورنال: Physics Letters B

سال: 2023

ISSN: ['0370-2693', '1873-2445']

DOI: https://doi.org/10.1016/j.physletb.2023.138017