Beilstein J. Nanotechnol.2020,11, 1178–1189, doi:10.3762/bjnano.11.102
Zielona Góra, Prof. Z. Szafrana 4a, 65-516 Zielona Góra, Poland Division of Physics, Częstochowa University of Technology, Ave. Armii Krajowej 19, 42-200 Częstochowa, Poland 10.3762/bjnano.11.102 Abstract When considering a Li-intercalated hexagonal boron nitride bilayer (Li-hBN), the vertexcorrections
of TC limits the possible applications of Li-hBN. The calculations were carried out under the classic Migdal–Eliashberg formalism (ME) and the Eliashberg theory with lowest-order vertexcorrections (LOVC). We show that the vertexcorrections of higher order (λ3) lower the value of TLOVCC by a few
percent.
Keywords: critical temperature; electron–phonon interaction; Li-hBN bilayer; Li-intercalated hexagonal boron nitride (Li-hBN); nonadiabatic superconductivity; vertexcorrections; Introduction
Low-dimensional systems such as graphene [1][2][3][4][5], silicene [6], borophene [7][8], and
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Figure 1:
The order parameter as a function of the temperature. ME model - symbols with the dot, LOVC model -...