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Reflection High-energy Positron Diffraction at Solid Surfaces by Improved Electrostatic Positron Beam by A Kawasuso; T Ishimoto; S Okada; H Itoh; A Ichimiya is a Materials Science article available to read on EtoBox.

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We report observation of reflection high-energy positron diffraction (RHEPD) at the Si(1 1 1) surface using an electrostatic positron beam. The improvement of the beam (i.e., reduction of beam energy spread) was critical to obtaining the higher-order diffraction spots. We could observe the first Laue zone, which was not seen in our previous work. This allows us to study the surface Debye temperature. The obtained rocking curve represents the enhancement of the fourth Bragg peak, as expected from diffraction theory, in addition to previously confirmed total reflection and the first Bragg peak.

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Author

A Kawasuso; T Ishimoto; S Okada; H Itoh; A Ichimiya

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0169-4332)

Published

2002

Language

EN

Field

Materials Science (Physical Sciences)