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- W3178693776 abstract "We study the effects of the Lifshitz transition from closed to open Fermi surface in dirty topological insulators with the nematic superconductivity near the critical temperature. We solve linearized Gor'kov equations and find that the nematic superconductor with an open Fermi surface has a lower critical temperature and more susceptible to the disorder than the superconductor with the closed Fermi surface. We propose that correspondence between the critical temperature and stability against the disorder is the general feature of the superconductivity. We investigate the effects of the Lifshitz transition on the competition between superconducting phases in a topological insulator. Open Fermi surface is beneficial for the nematic order parameter $Delta_4$ in competition with orbital-triplet $Delta_2$ and disfavors nematic state over the s-wave order parameter. We study Meissner currents in both clean and dirty limits. We found that transition from closed to open Fermi surface increases anisotropy of Meissner currents. Finite disorder suppresses superconducting density stronger than critical temperature. We compare our results with the existing experimental data." @default.
- W3178693776 created "2021-07-19" @default.
- W3178693776 creator A5075008308 @default.
- W3178693776 date "2021-07-07" @default.
- W3178693776 modified "2023-09-27" @default.
- W3178693776 title "Lifshitz transition in dirty nematic superconductor" @default.
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- W3178693776 hasPublicationYear "2021" @default.
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