94 citations · 239 across the 21 of their papers we have counts for
21 papers
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…
Emergence of Surface Superconductivity through Interference in Superconducting-proximity Topological Insulators
Yajiang Chen, Ke-Ji Chen, Jia-Ji Zhu +1
Superconducting-proximity topological insulators (STIs) have garnered significant research attention over the past two decades. In this Letter, we demonstrate that a low-dimensiona…
Yu-Shiba-Rusinov states in the s-wave superconducting kagome Hubbard model: Self-consistent Bogoliubov-de Gennes calculations
Shuaibo Ding, Yunfei Bai, A. A. Bulekov +3
Significant research has recently been conducted into the Yu-Shiba-Rusinov (YSR) states in kagome superconductors through theoretical modeling and experimental investigations. Howe…
The Type-II/Type-I Crossover in Dirty Ferromagnetic Superconductors
P. M. Marychev, Yajiang Chen
In this work we investigate the intertype (IT) domain in strongly disordered ferromagnetic superconductors with a Curie temperature lower than the superconducting critical temperat…
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…
Tailoring of the interference-induced surface superconductivity by an applied electric field
Yunfei Bai, Libo Zhang, Xiaobing Luo +2
Nucleation of the pair condensate near surfaces above the upper critical magnetic field and the pair-condensate enhancement/suppression induced by changes in the electron-phonon in…
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…
Surface superconductor-insulator transition induced by an electric field
Liyu Yin, Yunfei Bai, Ming Zhang +2
It is well-known that the electric field can induce phase transitions between superconducting, metallic and insulating states in thin-film materials due to its control of the charg…
Ratchet current in a -symmetric Floquet quantum system with symmetric sinusoidal driving
Zhiqiang Li, Xiaoxiao Hu, Jinpeng Xiao +2
We consider the ratchet dynamics in a -symmetric Floquet quantum system with symmetric temporal (harmonic) driving. In the exact phase, for a finite nu…
Scattering of one-dimensional quantum droplets by a reflectionless potential well
Xiaoxiao Hu, Zhiqiang Li, Yu Guo +2
We investigate, both analytically and numerically, the scattering of one-dimensional quantum droplets by a Pöschl-Teller reflectionless potential well, confirming that there is a s…
Interference-induced surface superconductivity:Enhancement by tuning the Debye energy
Yunfei Bai, Yajiang Chen, M. D. Croitoru +3
In the usual perception, surface superconductivity is associated with the surface nucleation of a superconducting condensate above the upper critical field in type-II superconducto…
Spin Josephson effects of spin-orbit-coupled Bose-Einstein condensates in a non-Hermitian double well
Jia Tang, Zhou Hu, Zhao-Yun Zeng +5
In this paper, we investigate the spin and tunneling dynamics of a spin-orbit-coupled noninteracting Bose-Einstein condensate in a periodically driven non-Hermitian double-well pot…
Multiband Superconductors: Two Characteristic Lengths for Each Contributing Condensate
Yajiang Chen, A. A. Shanenko
Traditionally, the characteristic length of a superconducting condensate is associated with the spatial distribution of the corresponding gap function. However, the superconducting…
Phase control of localization in the nonlinear two-mode system from harmonic mixing driving: Perturbative analysis and symmetry consideration
Xianchao Le, Zhao-Yun Zeng, Baiyuan Yang +7
In this paper, we present a rigorous analysis of symmetry and underlying physics of the nonlinear two-mode system driven by a harmonic mixing field, by means of multiple scale asym…
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…
Superconducting transition temperature of Pb nanofilms: Impact of the thickness-dependent oscillations of the phonon mediated electron-electron coupling
Yajiang Chen, A. A. shanenko, F. M. Peeters
To date, several experimental groups reported measurements of the thickness dependence of T_c of atomically uniform single-crystalline Pb nanofilms. The reported amplitude of the T…
Two-band superconductors: Hidden criticality deep in the superconducting state
L. Komendová, Yajiang Chen, A. A. Shanenko +2
We show that two-band superconductors harbor hidden criticality deep in the superconducting state, stemming from the critical temperature of the weaker band taken as an independent…
Superconducting nanofilms: molecule-like pairing induced by quantum confinement
Yajiang Chen, A. A. Shanenko, A. Perali +1
Quantum confinement of the perpendicular motion of electrons in single-crystalline metallic superconducting nanofilms splits the conduction band into a series of single-electron su…
Superconducting nanowires: quantum confinement and spatially dependent Hartree-Fock potential
Yajiang Chen, M. D. Croitoru, A. A. Shanenko +1
It is well-known that in bulk, the solution of the Bogoliubov-de Gennes equations is the same whether or not the Hartree-Fock term is included. Here the Hartree-Fock potential is p…