Scanning probe energy loss spectroscopy with microfabricated coaxial tips

Mi Song; James Lawton; Alexander Robinson; Richard Palmer

doi:10.1103/PhysRevB.81.161411

Scanning probe energy loss spectroscopy with microfabricated coaxial tips

Mi Song, James Lawton, Alexander Robinson, Richard Palmer

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Abstract

We report scanning probe energy loss spectroscopy (SPELS) measurements of a graphite surface taken with microfabricated coaxial tips. The SPELS spectra of graphite obtained with a grounded coaxial tip show the pi and sigma plasmon peaks and intense secondary electron emission (SEE) peaks. In comparison, spectra taken with a simple Au cathode tip also showed the pi and sigma plasmon peaks but much weaker SEE peaks. The enhanced collection of secondary electrons enables the unoccupied band structure of the surface (i.e., above E-vac) to be explored.

Original language	English
Pages (from-to)	161411
Number of pages	1
Journal	Physical Review B
Volume	81
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.81.161411
Publication status	Published - 1 Apr 2010

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10.1103/PhysRevB.81.161411

Scanning Probe Electron AnalyseR (SPEAR)
Palmer, R.
Engineering & Physical Science Research Council
1/01/07 → 30/06/10
Project: Research Councils

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title = "Scanning probe energy loss spectroscopy with microfabricated coaxial tips",

abstract = "We report scanning probe energy loss spectroscopy (SPELS) measurements of a graphite surface taken with microfabricated coaxial tips. The SPELS spectra of graphite obtained with a grounded coaxial tip show the pi and sigma plasmon peaks and intense secondary electron emission (SEE) peaks. In comparison, spectra taken with a simple Au cathode tip also showed the pi and sigma plasmon peaks but much weaker SEE peaks. The enhanced collection of secondary electrons enables the unoccupied band structure of the surface (i.e., above E-vac) to be explored.",

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AU - Lawton, James

AU - Robinson, Alexander

AU - Palmer, Richard

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N2 - We report scanning probe energy loss spectroscopy (SPELS) measurements of a graphite surface taken with microfabricated coaxial tips. The SPELS spectra of graphite obtained with a grounded coaxial tip show the pi and sigma plasmon peaks and intense secondary electron emission (SEE) peaks. In comparison, spectra taken with a simple Au cathode tip also showed the pi and sigma plasmon peaks but much weaker SEE peaks. The enhanced collection of secondary electrons enables the unoccupied band structure of the surface (i.e., above E-vac) to be explored.

AB - We report scanning probe energy loss spectroscopy (SPELS) measurements of a graphite surface taken with microfabricated coaxial tips. The SPELS spectra of graphite obtained with a grounded coaxial tip show the pi and sigma plasmon peaks and intense secondary electron emission (SEE) peaks. In comparison, spectra taken with a simple Au cathode tip also showed the pi and sigma plasmon peaks but much weaker SEE peaks. The enhanced collection of secondary electrons enables the unoccupied band structure of the surface (i.e., above E-vac) to be explored.

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DO - 10.1103/PhysRevB.81.161411

M3 - Article

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SN - 2469-9969

VL - 81

SP - 161411

JO - Physical Review B

JF - Physical Review B

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Scanning probe energy loss spectroscopy with microfabricated coaxial tips

Abstract

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Scanning Probe Electron AnalyseR (SPEAR)

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