Teampaper snap8/19/2023 Simultaneous topographic and elemental chemical and magnetic contrast in scanning tunneling microscopy. Anomalous Kondo resonance mediated by semiconducting graphene nanoribbons in a molecular heterostructure. Nanoassembly of a fractal polymer: a molecular “Sierpinski hexagonal gasket”. Intra- and intermolecular self-assembly of a 20-nm-wide supramolecular hexagonal grid. ![]() Electronic read-out of a single nuclear spin using a molecular spin transistor. Vincent, R., Klyatskaya, S., Ruben, M., Wernsdorfer, W. STM/AFM investigations of β-MoTe 2, α-MoTe 2 and WTe 2. First principles calculation of Fe L 2,3-edge X-ray absorption near edge structures of iron oxides. X-ray magnetic circular dichroism and near-edge X-ray absorption fine structure of buried interfacial magnetism measured by using a scanning tunneling microscope tip. 3 d x-ray-absorption lines and the 3 d 94 f n+1 multiplets of the lanthanides. Determination of the relative concentrations of rare earth ions by X-ray absorption spectroscopy: application to terbium mixed oxides. X-ray detected magnetic hysteresis of thermally evaporated terbium double-decker oriented film. Controlling the charge state of individual gold adatoms. Inducing all steps of a chemical reaction with the scanning tunneling microscope tip: towards single molecule engineering. XTIP – the world’s first beamline dedicated to the synchrotron X-ray scanning tunneling microscopy technique. Detecting element specific electrons from a single cobalt nanocluster with synchrotron X-ray scanning tunneling microscopy. On-surface coordination chemistry of planar molecular spin systems: novel magnetochemical effects induced by axial ligands. Stereospecific autocatalytic surface explosion chemistry of polycyclic aromatic hydrocarbons. Elemental fingerprinting of materials with sensitivity at the atomic limit. Synchrotron X-ray scanning tunneling microscopy: fingerprinting near to far field transitions on Cu(111) induced by synchrotron radiation. Nanoscale chemical imaging by scanning tunneling microscopy assisted by synchrotron radiation. Development of a scanning tunneling microscope for in situ experiments with a synchrotron radiation hard-X-ray microbeam. Aluminium in Alzheimer’s disease: are we still at a crossroad? Cell. The integral role of iron in ocean biogeochemistry. Stabilization of point-defect spin qubits by quantum wells. X-ray nanospectroscopy for attogram-scale two-dimensional nanomaterials using photoelectron emission microscopy. Synchrotron radiation-induced total reflection X-ray fluorescence analysis. Soft X-ray microscopy at a spatial resolution better than 15 nm. Synchrotron radiation: a continuing revolution in X-ray science-diffraction limited storage rings and beyond. Review of third and next generation synchrotron light sources. ![]() Integrative, dynamic structural biology at atomic resolution-it’s about time. ![]() Synchrotron-based techniques for plant and soil science: opportunities, challenges and future perspectives. Reaching the magnetic anisotropy limit of a 3 d metal atom. High-spatial-resolution mapping of catalytic reactions on single particles. Our work connects synchrotron X-rays with a quantum tunnelling process and opens future X-rays experiments for simultaneous characterizations of elemental and chemical properties of materials at the ultimate single-atom limit. The X-ray signal can be sensed only when the tip is located directly above the atom in extreme proximity, which confirms atomically localized detection in the tunnelling regime. The chemical states of these atoms are characterized by means of near-edge X-ray absorption signals, in which X-ray-excited resonance tunnelling (X-ERT) is dominant for the iron atom. The fingerprints of a single atom, the L 2,3 and M 4,5 absorption edge signals for iron and terbium, respectively, are clearly observed in the X-ray absorption spectra. Using a specialized tip as a detector, X-ray-excited currents generated from an iron and a terbium atom coordinated to organic ligands are detected. Here we show that X-rays can be used to characterize the elemental and chemical state of just one atom. X-ray characterization requires a large number of atoms and reducing the material quantity is a long-standing goal. Since the discovery of X-rays by Roentgen in 1895, its use has been ubiquitous, from medical and environmental applications to materials sciences 1, 2, 3, 4, 5.
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