Reflection electron energy-loss spectroscopy studies of Ca segregation on MgO (100) surfaces

Peter Crozier; M. Gajdardziska-Josifovska

doi:10.1016/0304-3991(93)90172-T

Reflection electron energy-loss spectroscopy studies of Ca segregation on MgO (100) surfaces

Peter Crozier, M. Gajdardziska-Josifovska

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12 Scopus citations

Abstract

The technique of reflection electron energy-loss spectroscopy (REELS) in the electron microscope is applied to the study of oxygen-annealed (100) surfaces of MgO. It is shown that REELS can detect the Ca layer that forms on the surface during annealing. High-spatial-resolution surface analysis indicates that Ca preferentially segregates to surface steps and is associated with decoration material at the steps, which has been reported in earlier studies. The presence of a Ca marker layer on the annealed MgO surface provides a suitable test sample for investigating the influence of surface resonance diffracting conditions on the reflection spectra.

Original language	English (US)
Pages (from-to)	63-76
Number of pages	14
Journal	Ultramicroscopy
Volume	48
Issue number	1-2
DOIs	https://doi.org/10.1016/0304-3991(93)90172-T
State	Published - Jan 1993

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Instrumentation

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10.1016/0304-3991(93)90172-T

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title = "Reflection electron energy-loss spectroscopy studies of Ca segregation on MgO (100) surfaces",

abstract = "The technique of reflection electron energy-loss spectroscopy (REELS) in the electron microscope is applied to the study of oxygen-annealed (100) surfaces of MgO. It is shown that REELS can detect the Ca layer that forms on the surface during annealing. High-spatial-resolution surface analysis indicates that Ca preferentially segregates to surface steps and is associated with decoration material at the steps, which has been reported in earlier studies. The presence of a Ca marker layer on the annealed MgO surface provides a suitable test sample for investigating the influence of surface resonance diffracting conditions on the reflection spectra.",

author = "Peter Crozier and M. Gajdardziska-Josifovska",

note = "Funding Information: This work is supported by DOE (Grant No. DE-FG02-86ER45228) and the HREM-IAP and was carried out on the microscopes of the National Center for High Resolution Electron Microscopy established with support from the National Science Foundation (Grant No. DMR-91-15680). We are also grateful to Dr. J.M. Cowley for useful discussions.",

year = "1993",

month = jan,

doi = "10.1016/0304-3991(93)90172-T",

language = "English (US)",

volume = "48",

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journal = "Ultramicroscopy",

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T1 - Reflection electron energy-loss spectroscopy studies of Ca segregation on MgO (100) surfaces

AU - Crozier, Peter

AU - Gajdardziska-Josifovska, M.

N1 - Funding Information: This work is supported by DOE (Grant No. DE-FG02-86ER45228) and the HREM-IAP and was carried out on the microscopes of the National Center for High Resolution Electron Microscopy established with support from the National Science Foundation (Grant No. DMR-91-15680). We are also grateful to Dr. J.M. Cowley for useful discussions.

PY - 1993/1

Y1 - 1993/1

N2 - The technique of reflection electron energy-loss spectroscopy (REELS) in the electron microscope is applied to the study of oxygen-annealed (100) surfaces of MgO. It is shown that REELS can detect the Ca layer that forms on the surface during annealing. High-spatial-resolution surface analysis indicates that Ca preferentially segregates to surface steps and is associated with decoration material at the steps, which has been reported in earlier studies. The presence of a Ca marker layer on the annealed MgO surface provides a suitable test sample for investigating the influence of surface resonance diffracting conditions on the reflection spectra.

AB - The technique of reflection electron energy-loss spectroscopy (REELS) in the electron microscope is applied to the study of oxygen-annealed (100) surfaces of MgO. It is shown that REELS can detect the Ca layer that forms on the surface during annealing. High-spatial-resolution surface analysis indicates that Ca preferentially segregates to surface steps and is associated with decoration material at the steps, which has been reported in earlier studies. The presence of a Ca marker layer on the annealed MgO surface provides a suitable test sample for investigating the influence of surface resonance diffracting conditions on the reflection spectra.

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VL - 48

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JO - Ultramicroscopy

JF - Ultramicroscopy

IS - 1-2

ER -

Reflection electron energy-loss spectroscopy studies of Ca segregation on MgO (100) surfaces

Abstract

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