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General trends of electronic structures, superconducting pairing, and magnetic correlations in the Ruddlesden-Popper nickelate -layered superconductors LaNiO
Yang Zhang, Ling-Fang Lin, Adriana Moreo +3
We report a comprehensive theoretical analysis of the Ruddlesden-Popper layered nickelates LaNiO ( to 6) under pressure. Our results suggest that, while…
Electronic Structure, Magnetic and Pairing Tendencies of Alternating Single-layer Bilayer Stacking Nickelate LaNiO Under Pressure
Yang Zhang, Ling-Fang Lin, Adriana Moreo +3
Nickelates have continued to surprise since their unconventional superconductivity was discovered. Recently, the layered nickelate LaNiO with hybrid single-layer and…
Magnetic Correlations and Pairing Tendencies of the Hybrid Stacking Nickelate Superlattice LaNiO (LaNiO/LaNiO) under Pressure
Yang Zhang, Ling-Fang Lin, Adriana Moreo +2
Motivated by the recent rapid progress in high- nickelate superconductors, we comprehensively study the physical properties of the alternating bilayer trilayer stacking nickel…
Dynamics and Fusion of Majorana Zero Modes in Quantum-dot based Interacting Kitaev Chains
Bradraj Pandey, Elbio Dagotto
Motivated by the recent experimental realization of a minimal Kitaev chain in quantum dot systems, we present our theoretical findings on the dynamics and fusion of MZMs at or near…
Electronic structure, self-doping, and superconducting instability in the alternating single-layer trilayer stacking nickelates LaNiO
Yang Zhang, Ling-Fang Lin, Adriana Moreo +2
Motivated by the recently proposed alternating single-layer trilayer stacking structure for the nickelate LaNiO, we comprehensively study this system using {\it ab init…
Prediction of -wave superconductivity enhanced by electronic doping in trilayer nickelates LaNiO under pressure
Yang Zhang, Ling-Fang Lin, Adriana Moreo +2
Motivated by the recently reported signatures of superconductivity in trilayer LaNiO under pressure, we comprehensively study this system using {\it ab initio} and r…
Electronic structure, magnetic correlations, and superconducting pairing in the reduced Ruddlesden-Popper bilayer LaNiO under pressure: different role of orbital compared with LaNiO
Yang Zhang, Ling-Fang Lin, Adriana Moreo +2
The recent discovery of superconductivity in bilayer LaNiO (327-LNO) under pressure stimulated much interest in layered nickelates. However, superconductivity was not f…
Trends in electronic structures and -wave pairing for the rare-earth series in bilayer nickelate superconductor NiO
Yang Zhang, Ling-Fang Lin, Adriana Moreo +2
The recent discovery of pressure-induced superconductivity in the bilayer LaNiO (LNO) has opened a new platform for the study of unconventional superconductors. In this…
Structural phase transition, -wave pairing and magnetic stripe order in the bilayered nickelate superconductor LaNiO under pressure
Yang Zhang, Ling-Fang Lin, Adriana Moreo +2
Motivated by the recently discovered high- superconductor LaNiO, we comprehensively study this system using density functional theory and random phase approximatio…
Majorana zero modes in Y-shape interacting Kitaev wires
Bradraj Pandey, Nitin Kaushal, Gonzalo Alvarez +1
Motivated by the recent experimental realization of minimal Kitaev chains using quantum dots, we investigate the Majorana zero modes (MZM) in -shape Kitaev wires. We solve the a…
Electronic structure, dimer physics, orbital-selective behavior, and magnetic tendencies in the bilayer nickelate superconductor LaNiO under pressure
Yang Zhang, Ling-Fang Lin, Adriana Moreo +1
Motivated by the recently reported high-temperature superconductivity in the bilayer LaNiO (LNO) under pressure, here we comprehensively study this system using {\it ab…
Spin singlet topological superconductivity in the attractive Rashba Hubbard model
Peter Doak, Giovanni Balduzzi, Pontus Laurell +2
Fully gapped, spin singlet superconductors with antisymmetric spin-orbit coupling in a Zeeman magnetic field provide a promising route to realize superconducting states with non-Ab…
Majorana corner states on the dice lattice
Narayan Mohanta, Rahul Soni, Satoshi Okamoto +1
Lattice geometry continues providing exotic topological phases in condensed matter physics. Exciting recent examples are the higher-order topological phases, manifesting via locali…
Out of Equilibrium Majoranas in Interacting Kitaev Chains
Bradraj Pandey, Narayan Mohanta, Elbio Dagotto
We employ a time-dependent real-space local density-of-states method to study the movement and fusion of Majorana zero modes in the 1D interacting Kitaev model, based on the time e…
Coupled Hubbard ladders at weak coupling: Pairing and spin excitations
Thomas A. Maier, Elbio Dagotto
The Hubbard model provides a simple framework in which one can study how certain aspects of the electronic structure of strongly interacting systems can be tuned to optimize the su…
Skyrmion Control of Majorana States in Planar Josephson Junctions
Narayan Mohanta, Satoshi Okamoto, Elbio Dagotto
Planar Josephson junctions provide a versatile platform, alternative to the nanowire-based geometry, for the generation of the Majorana bound states, due to the additional phase tu…
Minimal-size Real Space d-wave Pairing Operator in CuO2 Planes
Adriana Moreo, Elbio Dagotto
A novel minimal-size pairing operator with -wave symmetry in CuO planes is introduced. This pairing operator creates on-site Cooper pairs at the four oxyg…
Half-filled Stripes in a Hole-Doped Three-Orbital Spin-Fermion Model for Cuprates
Mostafa Sherif Derbala Aly Hussein, Elbio Dagotto, Adriana Moreo
Using Monte Carlo techniques, we study a three-orbital CuO spin-fermion model for copper-based high critical temperature superconductors that captures the charge-transfer prope…
Phonon linewidth due to electron-phonon interactions with strong forward scattering in FeSe thin films on oxide substrates
Yan Wang, Louk Rademaker, Elbio Dagotto +1
The discovery of an enhanced superconducting transition temperature in monolayers of FeSe grown on several oxide substrates has opened a new route to high- superconducti…
On-site Atractive Multiorbital Hamiltonian for -Wave Superconductors
Christopher B. Bishop, Guangkun Liu, Elbio Dagotto +1
We introduce a two-orbital Hamiltonian on a square lattice that contains on-site attractive interactions involving the two orbitals. Via a canonical mean-field procedure simi…
Isotropic Quenched Disorder Triggers a Robust Nematic State in Electron-Doped Pnictides
Shuhua Liang, Christopher B. Bishop, Adriana Moreo +1
The phase diagram of electron-doped pnictides is studied varying the temperature, electronic density, and isotropic quenched disorder strength by means of computational techniques…
Orbital occupancy and charge doping in iron-based superconductors
Claudia Cantoni, Jonathan E. Mitchell, Andrew F. May +9
Iron-based superconductors (FBS) comprise several families of compounds having the same atomic building blocks for superconductivity, but large discrepancies among their physical p…
Diverging Nematic Susceptibility, Physical Meaning of T* scale, and Pseudogap in the Spin Fermion Model for Pnictides
Shuhua Liang, Anamitra Mukherjee, Niravkumar D. Patel +2
Using Monte Carlo simulations with a tunable uniaxial strain, for the first time the nematic susceptibility of a model for the pnictides is calculated. The results are in good agre…
Magnetic states of the five-orbital Hubbard model for one-dimensional iron-based superconductors
Qinlong Luo, Kateryna Foyevtsova, German D. Samolyuk +2
The magnetic phase diagrams of models for quasi one-dimensional compounds belonging to the iron-based superconductors family are presented. The five-orbital Hubbard model and the r…