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Determination of the Bond Length and Binding Energy of the Helium Dimer by Diffraction from a Transmission Grating
Abstract
A molecular beam consisting of small helium clusters is diffracted from a 100 nm period transmission grating. The relative dimer intensities have been measured out to the 7th order and are used to determine the reduction of the effective slit width resulting from the finite size of the dimer. From a theoretical analysis of the data which also takes into account the van der Waals interaction with the grating bars, the bond length (mean internuclear distance) and the binding energy are found to be $〈r〉\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}52\ifmmode\pm\else\textpm\fi{}4\AA{}$ and $|{E}_{b}|\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.1+0.3/\ensuremath{-}0.2$ mK.
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Citations
Cited by
Structural properties of nanoclusters: Energetic, thermodynamic, and kinetic effects
Baletto, F., & Ferrando, R. (2005) · Reviews of Modern Physics · doi:10.1103/revmodphys.77.371 · Cited by 1,811
Universality in few-body systems with large scattering length
Braaten, E., & Hammer, H.-W. (2006) · Physics Reports · doi:10.1016/j.physrep.2006.03.001 · Cited by 1,313
Helium Nanodroplets: An Overview
Barranco, M., Guardiola, R., Hernández, S., Mayol, R., Navarro, J., & Pi, M. (2006) · Journal of Low Temperature Physics · doi:10.1007/s10909-005-9267-0 · Cited by 309
Metadata
- Authors
- Grisenti, R. E., Schöllkopf, W., Toennies, J. P., Hegerfeldt, G. C., Köhler, T., & Stoll, M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2000-09-11
- Volume
- 85
- Issue
- 11
- Pages
- 2284-2287
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1984177592
- Cited by
- 326
- References
- 0
- FWCI
- 9.01
- Type
- journal article
- Language
- en
- Open access
- closed
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- Grisenti, R. E., Schöllkopf, W., Toennies, J. P., Hegerfeldt, G. C., Köhler, T., & Stoll, M. (2000). Determination of the Bond Length and Binding Energy of the Helium Dimer by Diffraction from a Transmission Grating. Physical Review Letters. https://doi.org/10.1103/physrevlett.85.2284
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