J
J. H. Coombs
Researcher at IBM
Publications - 4
Citations - 465
J. H. Coombs is an academic researcher from IBM. The author has contributed to research in topics: Quantum tunnelling & Scanning tunneling spectroscopy. The author has an hindex of 4, co-authored 4 publications receiving 451 citations.
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Photon emission with the scanning tunneling microscope
TL;DR: By placing a photon detector near the tip-sample region of a scanning tunneling microscope, the authors measured isochromat photon-emission spectra of polycrystalline tantalum and Si(111)7×7 at photon energies of 9.5 eV.
Journal ArticleDOI
Photon emission experiments with the scanning tunnelling microscope
TL;DR: In this paper, the authors detected the light emitted from an STM at both ultraviolet (9·5 eV) and optical (1−4 eV), and showed that this light contains spectroscopic information on the sample surface comparable to conventional inverse photoelectric spectroscopy, but with nearly atomic spatial resolution.
Journal ArticleDOI
Fine structure in field emission resonances at surfaces
J. H. Coombs,James K. Gimzewski +1 more
TL;DR: In this article, the electron wave interference effect carries additional information in the resonance amplitudes and energies and is sensitive to lateral tip position in a scanning tunnelling microscope experiment, which can distinguish between some of the possible origins of the fine structure.
Journal ArticleDOI
Local inverse photoemission with the scanning tunneling microscope
TL;DR: In this article, the intensity of the outcoming photons at various energies was measured as a function of bias voltage between tip and sample, and compared to conventional inverse photoemission and tunneling spectroscopy.