a parallel beam of molecules that are at low pressure and suffer no interatomic or intermolecular collisions
molecular beam in American English
noun
Physics
a stream of molecules freed from a substance, usually a salt, by evaporation and then passed through a narrow slit for focusing, for investigating the properties of nuclei, atoms, and molecules
Also called: molecular ray
Examples of 'molecular beam' in a sentence
molecular beam
The devices were fabricated by molecular beam epitaxy.
McPheeters Claiborne, Yu Edward, Hu Dongzhi, Schaadt Daniel 2011, 'Improvement of performance of InAs quantum dot solar cell by inserting thin AlAs layers',Nanoscale Research Lettershttp://www.nanoscalereslett.com/content/6/1/83. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Samples were obtained by the method of molecular-beam epitaxy.
L S Lunin, M D Bavizhev, I A Sysoev, V A Lapin, D S Kuleshov, F F Malyavin 2012, 'The influence of the substrate temperature change character during the growth on thetopology of the Ge/Si(100) film surface', RUDN Journal of Engineering Researcheshttp://journals.rudn.ru/engineering-researches/article/view/5212. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
High quality 8-nm films were grown by laser-assisted molecular beam epitaxy deposition.
Andrei Sokolov, Eugene Kirianov, Albina Zlenko, Abdiel Quetz, Anil Aryal, Sudip Pandey,Igor Dubenko, Shane Stadler, Naushad Ali, Nabil Al-Aqtash, Renat Sabirianov 2016, 'Magnetic and magneto-transport studies of substrate effect on the martensitic transformationin a NiMnIn shape memory alloy', AIP Advanceshttp://dx.doi.org/10.1063/1.4943537. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Here, we demonstrate a putative antibacterial surface using copper nanowhiskers deposited by molecular beam epitaxy.
Ajay Vikram Singh, Semanur Baylan, Byung-Wook Park, Gunther Richter, Metin Sitti 2017, 'Hydrophobic pinning with copper nanowhiskers leads to bactericidal properties', PLOS ONE10.1371/journal.pone.0175428. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The multilayer stack has been grown by molecular beam epitaxy and e-beam evaporation.
B. Gobaut, G. Vinai, C. Castán-Guerrero, D. Krizmancic, H. Rafaqat, S. Roddaro, G.Rossi, G. Panaccione, M. Eddrief, M. Marangolo, P. Torelli 2015, 'Magnetoresistance of galfenol-based magnetic tunnel junction', AIP Advanceshttp://dx.doi.org/10.1063/1.4939019. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The growth by oxygen-assisted molecular beam epitaxy takes place in two stages.
Anna Mandziak, Juan de la Figuera, Sandra Ruiz-Gómez, Guiomar D. Soria, Lucas Pérez,Pilar Prieto, Adrian Quesada, Michael Foerster, Lucía Aballe 2018, 'Structure and magnetism of ultrathin nickel-iron oxides grown on Ru(0001) by high-temperatureoxygen-assisted molecular beam epitaxy', Scientific Reportshttp://link.springer.com/article/10.1038/s41598-018-36356-6. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
To produce elastomer layers nanometers thin, molecular beam deposition was introduced.
Florian M. Weiss, Frederikke B. Madsen, Tino Töpper, Bekim Osmani, Vanessa Leung,Bert Müller 2016, 'Molecular beam deposition of high-permittivity polydimethylsiloxane for nanometer-thinelastomer films in dielectric actuators', Materials & Designhttp://www.sciencedirect.com/science/article/pii/S0264127516306542. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
For some samples, 1/3 of the surface was covered with palladium using molecular beam epitaxy.
K. Drogowska, S. Flege, C. Schmitt, D. Rogalla, H.-W. Becker, Nhu-T. H. Kim-Ngan,A. Brudnik, Z. Tarnawski, K. Zakrzewska, M. Marszałek, A. G. Balogh 2012, 'Hydrogen Charging Effects in Pd/Ti/TiO2/Ti Thin Films Deposited on Si(111) Studiedby Ion Beam Analysis Methods', Advances in Materials Science and Engineeringhttp://dx.doi.org/10.1155/2012/269603. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Samples were analyzed by pyrolysis-molecular beam mass spectrometry before and after extractions to monitor the extraction efficiency.
Anne Elizabeth Harman-Ware, Robert eSykes, Gary F. Peter, Mark eDavis 2016, 'Determination of terpenoid content in pine by organic solvent extraction and fast-GCanalysis', Frontiers in Energy Researchhttp://journal.frontiersin.org/Journal/10.3389/fenrg.2016.00002/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)