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Maximizing spectral sensitivity without compromising resolution in phase-incremented, steady-state solution NMR
Effective treatment of systemic candidiasis by synergistic targeting of cell wall synthesis
The effects of candidate probiotic strains on the gut environment in dextran sulfate sodium-induced colitis mouse
Spatial regression analysis of land use impact on land surface temperature in four East Asian metropolises
Greening improvement scenarios for assessing the potential of urban carbon sinks and runoff reduction
RETRACTED ARTICLE: SIAH2-AS1 stimulates breast cancer cell proliferation and migration via the Wnt/β-catenin signaling pathway
PM2.5 concentration 7-day prediction in the Beijing–Tianjin–Hebei region using a novel stacking framework
Glare suppressed 3D mapping system based on linear polarization filtering and binocular vision fusion
Multi-source data fusion-based knowledge transfer for unmanned aerial vehicle flight data anomaly detection and recovery
Preliminary high-dose irradiation of the recipient and associated damage of bone marrow stromal compartment enables bone marrow stroma transplantation
Big evolutionary fireworks in tiny glass houses
Systematic modulation of charge and spin in graphene nanoribbons on MgO
Abstract In order to take full advantage of graphene nanostructures in quantum technologies, their charge and spin state must be precisely controlled. Graphene quantum dots require external gating potentials to tune their ground state. Here, we show systematic manipulation of the electron occupation in graphene nanoribbons lying on MgO layers grown on Ag(001). Owing to the efficient electronic decoupling character of MgO, and the electropositive nature of the substrate, the ribbons host an integer number of electrons that depend on their length and shape. This results in the alternation between a non-magnetic closed-shell state and an open-shell paramagnetic system for even and odd electron occupations respectively. For the odd case, we find a narrow Coulomb correlation gap, which is the smoking gun of its spin-½ state. Comparisons of scanning tunnelling microscopy data with mean-field Hubbard simulations confirm the discretization of the ribbons’ electronic states and charge excess of up to 19 electrons per ribbon.