Observation of differences between low-energy electron- and positron-diffraction structural determinations of the cleavage faces of CdSe

Journal Article · Mon Apr 17 00:00:00 EDT 1989 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.62.1876· OSTI ID:6182205

Horsky, T N; Brandes, G R; Canter, K F; Duke, C B; Horng, S F; Kahn, A; Lessor, D L; Mills, Jr, A P; Paton, A; Stevens, K; others, and

Low-energy positron diffraction (LEPD) is used in conjunction with low-energy electron diffraction (LEED) to determine the relaxed atomic geometries of the CdSe cleavage surfaces. The LEPD analyses yield optimal fits at smaller top-layer perpendicular relaxations than LEED for both cleavage faces, and significantly better agreement between theoretical and experimental intensity profiles.

• Research Organization: Department of Physics, Brandeis University, Waltham, Massachusetts 02254
• OSTI ID: 6182205
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:16; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
656003 -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOM COLLISIONS
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CHALCOGENIDES
CLEAVAGE
COHERENT SCATTERING
COLLISIONS
COMPARATIVE EVALUATIONS
CRYSTAL STRUCTURE
DIFFRACTION
ELECTRON DIFFRACTION
ENERGY DEPENDENCE
MICROSTRUCTURE
OPTIMIZATION
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
SCATTERING
SELENIDES
SELENIUM COMPOUNDS
SURFACES