Coupling of Yu-Shiba-Rusinov states in 1D chains of Fe atoms on Nb(110)

Abstract

The hybridization of Yu-Shiba-Rusinov states in dimers of magnetic impurities leads to molecular-like bonding and antibonding modes. In many-impurity systems, the interaction gives rise to YSR bands and can even result in the formation of a topologically non-trivial superconducting state, characterized by Majorana fermions at the edges of the system. To obtain a more detailed understanding of these interactions, we investigate the coupling of YSR states in short one-dimensional Fe chains on clean Nb(110). We observe a splitting of the single-atom YSR peaks into multiple states with even or odd spatial symmetry and identify a peculiar dependence of the even and odd states' energy position on the chain length.

arXiv comment7 pages, 4 figures

References in corpus (26)

• Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
• Majorana fermions in chains of magnetic atoms on a superconductor
• Topological Superconductivity and Majorana Fermions in RKKY Systems
• Topological superconducting phase in helical Shiba chains
• Interplay between classical magnetic moments and superconductivity in quantum one-dimensional conductors: toward a self-sustained topological Majorana phase
• End states and subgap structure in proximity-coupled chains of magnetic adatoms
• Distinguishing a Majorana zero mode using spin resolved measurements
• High-resolution studies of the Majorana atomic chain platform
• Long range coherent magnetic bound states in superconductors
• Strong localization of Majorana end states in chains of magnetic adatoms
• Exploring a proximity-coupled Co chain on Pb(110) as a possible Majorana platform
• Coupled Yu-Shiba-Rusinov states in molecular dimers on NbSe${}_2$
• Evidence of topological Shiba bands in artificial spin chains on superconductors
• The local spectrum of a superconductor as a probe of interactions between magnetic impurities
• Wave-function hybridization in Yu-Shiba-Rusinov dimers
• Probing magnetic interactions between Cr adatoms on the $\beta$-Bi${}_2$Pd superconductor
• Spin-orbit coupling induced splitting of Yu-Shiba-Rusinov states in antiferromagnetic dimers
• Quantum Interference between Impurities: Creating Novel Many-Body States in s-wave Superconductors
• Superconducting Gap Renormalization around two Magnetic Impurities: From Shiba to Andreev Bound States
• Phase diagram and excitations of a Shiba molecule
• On the preparation and electronic properties of clean superconducting Nb(110) surfaces
• Observation of tunable single-atom Yu-Shiba-Rusinov states
• Impurities, Quantum Interference and Quantum Phase Transitions in s-wave superconductors
• Long-range focusing of magnetic bound states in superconducting lanthanum
• Anisotropic vortices on superconducting Nb(110)
• Collective Yu-Shiba-Rusinov states in magnetic clusters at superconducting surfaces

Cited by in corpus (13)

• Two-dimensional Shiba lattices as possible platform for crystalline topological superconductivity
• Yu-Shiba-Rusinov states in 2D superconductors with arbitrary Fermi contours
• Wave-function engineering on superconducting substrates: Chiral Yu-Shiba-Rusinov molecules
• Systematic study of Mn atoms, artificial dimers and chains on superconducting Ta(110)
• Boosting the STM's spatial and energy resolution with double-functionalized probe tips
• Diamagnetic property and optical absorption in conventional superconductors with magnetic impurities
• Shiba states in systems with density of states singularities
• Diluted Yu-Shiba-Rusinov arrays on the $\beta$-Bi${}_2$Pd anisotropic superconductor
• Gate-tunable topological superconductivity in a supramolecular electron spin lattice
• Odd-parity ground state in dilute Yu-Shiba-Rusinov dimers and chains
• Fermi-Level Pinning of Yu-Shiba-Rusinov States in a Superconductor with Weakly Broken Spin-Rotational Invariance
• Kondo Screening and Indirect Magnetic Exchange through a Conventional Superconductor Studied by the Density-Matrix Renormalization Group
• Direct signatures of $d$-level hybridization and dimerization in magnetic adatom chains on a superconductor