Charge-density-wave control by adatom manipulation and its effect on magnetic nanostructures
arXiv:2410.02018 · doi:10.1021/acs.nanolett.4c04581
Abstract
Charge-density waves (CDWs) are correlated states of matter, where the electronic density is modulated periodically as a consequence of electronic and phononic interactions. Often, CDW phases coexist with other correlated states, such as superconductivity, spin-density waves or Mott insulators. Controlling CDW phases may therefore enable the manipulation of the energy landscape of these interacting states. 2H-NbSe is a prime example of a transition metal dichalcogenide (TMDC) hosting CDW order and superconductivity. The CDW is of incommensurate nature resulting in different CDW-to-lattice alignments at the atomic scale. Here, we use the tip of a scanning tunneling microscope (STM) to position adatoms on the surface and induce reversible switching of the CDW domains. We show that the domain structure critically affects other local interactions, namely the hybridization of Yu-Shiba-Rusinov (YSR) states, which arise from exchange interactions of magnetic Fe atoms with the superconductor. Our results suggest that CDW manipulation could also be used to introduce domain walls in coupled spin chains on superconductors, potentially also affecting topological superconductivity.
References in corpus (27)
- Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
- Fermi Surface Nesting and the Origin of the Charge Density Wave in NbSe
- Quantum phases driven by strong correlations
- Two energy gaps and Fermi surface 'arcs' in NbSe2
- Strongly Correlated Materials
- Single magnetic adsorbates on s-wave superconductors
- A quantum phase transition from triangular to stripe charge order in NbSe
- Orbital Picture of Yu-Shiba-Rusinov Multiplets
- Evidence of topological Shiba bands in artificial spin chains on superconductors
- Mapping the orbital structure of impurity bound states in a superconductor
- Hunting for Majoranas
- STM study of multiband superconductivity in NbSe2 using a superconducting tip
- Wave-function hybridization in Yu-Shiba-Rusinov dimers
- Quasiparticle Interference, quasiparticle interactions and the origin of the charge density-wave in 2H-NbSe
- Atomic-Scale Strain Manipulation of a Charge Density Wave
- Manipulating charge-density-wave in monolayer -TiSe by strain and charge doping: A first-principles investigation
- Yu-Shiba-Rusinov states in the charge-density modulated superconductor NbSe2
- Manipulating charge-density-wave in -TaS by charge carrier doping: A first-principles investigation
- Quantum spins and hybridization in artificially-constructed chains of magnetic adatoms on a superconductor
- Topological Landscape of Competing Charge Density Waves in 2H-NbSe2
- Two-dimensional Shiba lattices as possible platform for crystalline topological superconductivity
- Atomic-Scale Visualization of Chiral Charge Density Wave States and Their Reversible Transition
- Chiral charge density waves induced by Ti-doping in 1T-TaS2
- Impurity-pinned incommensurate charge density wave and local phonon excitations in 2H-NbS2
- Unveiling hidden charge density waves in single-layer NbSe by impurities
- Wave-function engineering on superconducting substrates: Chiral Yu-Shiba-Rusinov molecules
- Observation and manipulation of a phase separated state in a charge density wave material