A molecular beam epitaxy facility for in situ neutron scattering

A molecular beam epitaxy (MBE) facility has been built to enable in situ neutron scattering measurements during growth of epitaxial layers. While retaining the full capabilities of a research MBE chamber, this facility has been optimized for polarized neutron reflectometry measurements. Optimization...

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Bibliographic Details
Published in:Review of scientific instruments 2009-07, Vol.80 (7), p.073906-073906-9
Main Authors: Dura, J. A., LaRock, J.
Format: Article
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL GROWTH
DEPOSITION
DESIGN
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LAYERS
MAGNETIC FIELDS
MOLECULAR BEAM EPITAXY
NEUTRON DIFFRACTION
OPTIMIZATION
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Description
Summary:A molecular beam epitaxy (MBE) facility has been built to enable in situ neutron scattering measurements during growth of epitaxial layers. While retaining the full capabilities of a research MBE chamber, this facility has been optimized for polarized neutron reflectometry measurements. Optimization includes a compact lightweight portable design, a neutron window, controllable magnetic field, deposition across a large 76 mm diameter sample with exceptional flux uniformity, and sample temperatures continuously controllable from 38 to 1375 K. A load lock chamber allows for sample insertion, storage of up to 4 samples, and docking with other facilities. The design and performance of this chamber are described here.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.3169506