Magnetic deflection of neutral sodium-doped ammonia clusters
| Autor: | Julia Narevicius, Jonathan V. Barnes, Bruce L. Yoder, Sebastian Hartweg, Martin Beck, Alon Luski, Edvardas Narevicius, Ruth Signorell |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Doping General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Solvated electron 01 natural sciences Molecular physics 0104 chemical sciences 3. Good health Paramagnetism Ammonia chemistry.chemical_compound Molecular dynamics chemistry Deflection (engineering) Diamagnetism Physical and Theoretical Chemistry 0210 nano-technology Molecular beam |
| Zdroj: | Physical Chemistry Chemical Physics, 23 (2) |
| ISSN: | 1463-9084 |
| Popis: | We describe the setup and the performance of a new pulsed Stern–Gerlach deflector and present results for small sodium-doped ammonia clusters Na(NH3)n (n = 1–4) in a molecular beam. NaNH3 shows the expected deflection of a spin ½ system, while all lager clusters show much smaller deflections. Experimental deflection ratios are compared with the values calculated from molecular dynamics simulations. The comparison reveals that intracluster spin relaxation in NaNH3 takes place on a time scale significantly longer than 200 μs. Assuming that intracluster relaxation is the cause of the reduced deflection, relaxation times seem to be on the order of 200 μs for all larger clusters Na(NH3)n (n = 2–4). Our work is a first attempt to understand the magnetic properties of isolated, weakly-bound clusters with relevance to the variety of diamagnetic and paramagnetic species expected in solvated electron systems. ISSN:1463-9084 ISSN:1463-9076 |
| Databáze: | OpenAIRE |
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