Abstract
We report the use of pseudo-double-beam atomic absorption spectroscopy to make very accurate (0.1%-1%) measurements of the beam flux from Knudsen effusion cells in a molecular beam epitaxy system. This system has been used to grow Bi-Sr-Ca-Cu-O-based superconducting thin films and heterostructures in an atomic-layer-by-layer fashion. The resulting material displays excellent crystallographic and transport properties. Atomic absorption measurement of beam fluxes may also be of benefit for other materials systems, such as InGaAs/InP.
Original language | English (US) |
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Pages (from-to) | 657-659 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 60 |
Issue number | 5 |
DOIs | |
State | Published - 1992 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)