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- Chinese Academy of SciencesCN7 papers
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6 papers · 1 filter
Universal crossover in surface superconductivity: Impact of varying Debye energy
Quanyong Zhu, Xiaobin Luo, A. A. Shanenko +1
Recently, interference-induced surface superconductivity (SC) has been predicted within an attractive Hubbard model with -wave pairing, prompting intensive studies of its proper…
Superconducting properties of Fibonacci chains with enhanced superconducting pairing at the boundaries
Quanyong Zhu, Guo-Qiao Zha, A. A. Shanenko +1
Recently, the superconducting properties of Fibonacci quasicrystals have attracted considerable attention. By numerically solving the self-consistent Bogoliubov-de Gennes equations…
Surface superconductor-insulator transition: Reduction of the critical electric field by Hartree-Fock potential
Yajiang Chen, Quanyong Zhu, Ming Zhang +2
Recently, a surface superconductor-insulator transition has been predicted for a bulk superconductor in an electric field applied perpendicular to its surface. The related calculat…
Non-gapless excitation and zero-bias fast oscillations in the LDOS of surface superconducting states
Liangyuan Chen, Yajiang Chen, Zhang Wenhui +1
Recently a novel surface pair-density-wave (PDW) superconducting state has been discovered in Refs. [Phys. Rev. Lett. \textbf{122}, 165302 (2019)] and Phys. Rev. B \textbf{101}, 05…
Novel -type vortex in a nanoscale extreme type-II superconductor: Induced by quantum-size effect
Haiyan Huang, Qing Liu, Wenhui Zhang +1
By numerically solving the Bogoliubov-de Gennes equations, we report a novel -type vortex state whose order parameter near the core undergoes an extraordinary -phase change f…
Interplay of Fermi velocities and healing lengths in two-band superconductors
Yajiang Chen, Haiping Zhu, A. A. Shanenko
By numerically solving the Bogoliubov-de Gennes equations for the single vortex state in a two-band superconductor, we demonstrate that the disparity between the healing lengths of…