Segregation of Ca ions at the MgO(001) surface studied by neutral beam incidence ion scattering spectroscopy

R. Souda; T. Aizawa; Y. Ishizawa; C. Oshima

doi:10.1116/1.576566

Segregation of Ca ions at the MgO(001) surface studied by neutral beam incidence ion scattering spectroscopy

R. Souda, T. Aizawa, Y. Ishizawa, C. Oshima

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

Low energy ion scattering with the use of a neutral He0 beam (NBISS) has been applied to analyze the structure of MgO(001) with Ca2+ impurities segregated from the bulk. The NBISS technique successfully avoids specimen charging, which is a common obstacle to analyzing the insulating surface by using ordinary ion scattering techniques. It is found that the segregated Ca2+ ions are substituted for the Mg2+ ions at the surface and are protruding from the original MgO plane by 0.4±0.1 Å.

Original language	English
Pages (from-to)	3218-3223
Number of pages	6
Journal	Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume	8
Issue number	4
DOIs	https://doi.org/10.1116/1.576566
Publication status	Published - 1990 Jul 1

Keywords

Atomic beams
Calcium ions
Crystal structure
Impurities
Ion scattering analysis
Magnesium oxides
MgO:Ca
Segregation
Surface properties

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

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title = "Segregation of Ca ions at the MgO(001) surface studied by neutral beam incidence ion scattering spectroscopy",

abstract = "Low energy ion scattering with the use of a neutral He0 beam (NBISS) has been applied to analyze the structure of MgO(001) with Ca2+ impurities segregated from the bulk. The NBISS technique successfully avoids specimen charging, which is a common obstacle to analyzing the insulating surface by using ordinary ion scattering techniques. It is found that the segregated Ca2+ ions are substituted for the Mg2+ ions at the surface and are protruding from the original MgO plane by 0.4±0.1 {\AA}.",

keywords = "Atomic beams, Calcium ions, Crystal structure, Impurities, Ion scattering analysis, Magnesium oxides, MgO:Ca, Segregation, Surface properties",

author = "R. Souda and T. Aizawa and Y. Ishizawa and C. Oshima",

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T1 - Segregation of Ca ions at the MgO(001) surface studied by neutral beam incidence ion scattering spectroscopy

AU - Souda, R.

AU - Aizawa, T.

AU - Ishizawa, Y.

AU - Oshima, C.

PY - 1990/7/1

Y1 - 1990/7/1

N2 - Low energy ion scattering with the use of a neutral He0 beam (NBISS) has been applied to analyze the structure of MgO(001) with Ca2+ impurities segregated from the bulk. The NBISS technique successfully avoids specimen charging, which is a common obstacle to analyzing the insulating surface by using ordinary ion scattering techniques. It is found that the segregated Ca2+ ions are substituted for the Mg2+ ions at the surface and are protruding from the original MgO plane by 0.4±0.1 Å.

AB - Low energy ion scattering with the use of a neutral He0 beam (NBISS) has been applied to analyze the structure of MgO(001) with Ca2+ impurities segregated from the bulk. The NBISS technique successfully avoids specimen charging, which is a common obstacle to analyzing the insulating surface by using ordinary ion scattering techniques. It is found that the segregated Ca2+ ions are substituted for the Mg2+ ions at the surface and are protruding from the original MgO plane by 0.4±0.1 Å.

KW - Atomic beams

KW - Calcium ions

KW - Crystal structure

KW - Impurities

KW - Ion scattering analysis

KW - Magnesium oxides

KW - MgO:Ca

KW - Segregation

KW - Surface properties

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SN - 0734-2101

VL - 8

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JO - Journal of Vacuum Science and Technology A

JF - Journal of Vacuum Science and Technology A

IS - 4

ER -

Segregation of Ca ions at the MgO(001) surface studied by neutral beam incidence ion scattering spectroscopy

Abstract

Keywords

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