236 citations · 1.1k across the 15 of their papers we have counts for
15 papers
Epitaxial growth of gold films on the elemental superconductors V(100), Nb(100) and Nb(110)
Dongfei Wang, Katerina Vaxevani, Danilo Longo +7
Quantum technologies require a new generation of superconducting electronic devices and circuitry. However, the superconducting materials used to construct them are restricted to a…
Tunable Current Rectification Through a Designer Graphene Nanoribbon
Niklas Friedrich, Jingcheng Li, Iago Pozo +2
Unimolecular current rectifiers are fundamental building blocks in organic electronics. Rectifying behavior has been identified in numerous organic systems due to electron-hole asy…
Pair excitations of a quantum spin on a proximitized superconductor
Stefano Trivini, Jon Ortuzar, Katerina Vaxevani +4
A magnetic impurity interacting with a superconductor develops a rich excitation spectrum formed by superposition of quasiparticles and spin states, which appear as Yu-Shiba-Rusino…
Addressing electron spins embedded in metallic graphene nanoribbons
Niklas Friedrich, Rodrigo E. Menchon, Iago Pozo +7
Spin-hosting graphene nanostructures are promising metal-free systems for elementary quantum spintronic devices. Conventionally, spins are protected from quenching by electronic ba…
Extending the spin excitation lifetime of a magnetic molecule on a proximitized superconductor
Katerina Vaxevani, Jingcheng Li, Stefano Trivini +4
Magnetic molecules deposited on surfaces are a promising platform to individually address and manipulate spins. Long spin excitation lifetimes are necessary to utilize them in quan…
Topological phase transition in chiral graphene nanoribbons: from edge bands to end states
Jingcheng Li, Sofia Sanz, Nestor Merino-Díez +7
Precise control over the size and shape of graphene nanostructures allows engineering spin-polarized edge and topological states, representing a novel source of non-conventional $π…
Band Depopulation of Graphene Nanoribbons Induced by Chemical Gating with Amino Groups
Jingcheng Li, Pedro Brandimarte, Manuel Vilas-Varela +10
The electronic properties of graphene nanoribbons (GNRs) can be precisely tuned by chemical doping. Here we demonstrate that amino (NH) functional groups attached at the edges…
Magnetism of topological boundary states induced by boron substitution in graphene nanoribbons
Niklas Friedrich, Pedro Brandimarte, Jingcheng Li +8
Graphene nanoribbons (GNRs), low-dimensional platforms for carbon-based electronics, show the promising perspective to also incorporate spin polarization in their conjugated electr…
Hierarchy in the halogen activation during surface-promoted Ullmann coupling
Néstor Merino-Díez, Alejandro Pérez Paz, Jingcheng Li +9
Within the collection of surface-supported reactions currently accessible for the production of extended molecular nanostructures under ultra-high vacuum, Ullmann coupling has been…
Uncovering the Triplet Ground State of Triangular Graphene Nanoflakes Engineered with Atomic Precision on a Metal Surface
Jingcheng Li, Sofia Sanz, Jesus Castro-Esteban +5
Graphene can develop large magnetic moments in custom crafted open-shell nanostructures such as triangulene, a triangular piece of graphene with zigzag edges. Current methods of en…
Electrically addressing the spin of a magnetic porphyrin through covalently connected graphene electrodes
Jingcheng Li, Niklas Friedrich, Nestor Merino +4
We report on the fabrication and transport characterization of atomically-precise single molecule devices consisting of a magnetic porphyrin covalently wired by graphene nanoribbon…
Single Spin Localization and Manipulation in Graphene Open-Shell Nanostructures
Jingcheng Li, Sofia Sanz, Martina Corso +4
Predictions state that graphene can spontaneously develop magnetism from the Coulomb repulsion of its -electrons, but its experimental verification has been a challenge. Here, w…
Electronic Properties of Substitutionally Boron-doped Graphene Nanoribbons on a Au(111) Surface
Eduard Carbonell-Sanromà, Aran Garcia-Lekue, Martina Corso +11
High quality graphene nanoribbons (GNRs) grown by on-surface synthesis strategies with atomic precision can be controllably doped by inserting heteroatoms or chemical groups in the…
Width-Dependent Band Gap in Armchair Graphene Nanoribbons Reveals Fermi Level Pinning on Au(111)
Néstor Merino-Díez, Aran Garcia-Lekue, Eduard Carbonell-Sanromà +7
We report on the energy level alignment evolution of valence and conduction bands of armchair-oriented graphene nanoribbons (aGNR) as their band gap shrinks with increasing width.…
Doping of Graphene Nanoribbons via Functional Group Edge Modification
Eduard Carbonell-Sanromà, Jeremy Hieulle, Manuel Vilas-Varela +9
We report on the on-surface synthesis of 7 armchair graphene nanoribbons (7-AGNRs) substituted with nitrile (CN) functional groups. The CN groups are attached to the GNR backbone b…