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IJPAP Vol.45(02) [February 2007] >


Title: Boron isotope distribution in laser deposited thin films of B₄C
Authors: Manoravi, P
Joseph, M
Balamurugan, A K
Rajagopalan, S
Ramamurthy, P
Keywords: B₄C thin film
Pulsed laser deposition
Isotope enrichment
Issue Date: Feb-2007
Publisher: CSIR
IPC CodeG01N13/00
Abstract: Isotope enrichment in laser-ablated plume is an interesting phenomenon. In this work, we have compared the boron isotope distribution present in thin films of B₄C that are formed by pulsed laser deposition using nanosecond (ns) and picosecond (ps) pulse Nd-YAG lasers. With the ns laser beam, in the plume we could observe an isotope ratio of ¹⁰B/¹¹B as high as 0.9, but in the film we could hardly see any enrichment. With ps pulsed laser, the maximum value obtained for the ¹⁰B/¹¹B ratio is about 0.29 in the film.
Page(s): 131-134
ISSN: 0019-5596
Source:IJPAP Vol.45(02) [February 2007]

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